What Can A Urine Culture Show


What You Need to Know About Urine Cultures

Your doctor informs you that an aurine culture will be performed. It’s a test to see if you have any germs or bacteria in your pee that might cause an infection of the urinary system (UTI). The urinary system is made up of the kidneys, the bladder, and the tubes that transport your urine (ureters and the urethra). In most cases, an infection begins in the bladder or urethra (the tube your pee comes out of). However, it has the potential to impact any aspect of the system. Infections can cause a burning sensation when you pee, which can be quite uncomfortable.

Having a fever and stomach ache may indicate a more serious infection, so seek medical attention immediately.

What Do I Do for a Urine Culture?

You have to pee in a cup. It appears to be straightforward, and it is. Simply ensure that you get a “clean” urine sample to ensure that any germs identified in it are from an illness in your urinary system and not from another source, such as your skin, before proceeding. Here’s how to go about it:

  1. Wipe the area surrounding where you pee with the cleaning pad that was provided to you. Wash your hands. If you’re a woman, spread the outer lips of your vagina and clean it from front to back from front to back from front to back. Men should clean the tip of their penis first, then pee a small amount in the toilet and quit rubbing their penis. Don’t pee in the cup until you’re ready. Then, place roughly 1 or 2 ounces of the mixture in a cup. Make certain that the container does not come into contact with your skin. Complete your peeing in the toilet. A pee capture in the middle of the stream is referred to as a “midstream” urine catch. Wash your hands once more

Some people may require the collection of their sample with the use of a catheter, which is a tiny tube that is inserted into your urethra and into your bladder. This is accomplished with the assistance of a health-care professional. The sample is placed in a new, clean container after being cleaned.

What Happens Next?

Some patients may require a catheter to be inserted into their urethra and into their bladder in order to collect their sample. The procedure is carried out with the assistance of a health-care professional. Place the sample in a new, clean container and discard the old one.

When Will I Get My Results?

Your doctor’s office will contact you within one to three days. They’ll go through the results with you when they’re done. If you have an illness, you will almost certainly be prescribed antibiotics. If this is the case, make certain you complete the total amount specified. The majority of the time, the infection subsides. However, it is possible that it will return, especially if you are a sexually active woman. In young women, sexual contact increases the likelihood of contracting an infection.

It is important that you take your medication in the manner prescribed by your doctor.

Urinalysis and Urine Culture – Kidney and Urinary Tract Disorders

Urinalysis is a procedure that requires

  • The use of chemical tests to identify and evaluate the levels of different compounds in the urine is becoming more common. Frequently, urine is examined under a microscope

Protein, glucose (sugar), ketones, blood, and other compounds are tested for using chemical methods. A tiny strip of plastic (dipstick) is used in these tests, which is impregnated with chemicals that react with compounds in the urine and cause the color to change fast. Occasionally, the results of the urine test are validated by a more sophisticated and accurate laboratory study of the urine specimen. The presence of red and white blood cells, crystals, and casts in the urine can be determined by examining it under a microscope (impressions of the kidney tubules created when urinary cells, protein, or both precipitate out in the tubules and are passed in the urine).

  1. Depending on the reason, protein may be present in the urine on a consistent basis or just infrequently.
  2. Small quantities of protein in the urine may be a warning indication of kidney damage caused by diabetes in the early stages of disease.
  3. During these instances, urine must be collected over a period of 12 or 24 hours and examined in a laboratory.
  4. As a result of the breakdown of fat, ketones are produced.
  5. Blood in the urine (hematuria) can be detected using a dipstick and verified with further tests such as inspecting the urine with a microscope and other procedures.
  6. A dipstick can be used to identify the presence of leukocyte esterase (an enzyme present in some white blood cells) in the urine.
  7. A dipstick is used to determine the acidity (pH) of urine.

Some people are predisposed to kidney stones as a result of a change in their acidity.

The concentration of urine in the bloodstream can also be useful in identifying faulty kidney function.

One unique test requires a person to refrain from drinking any water or other fluids for 12 to 14 hours.

Following that, the concentration of urine is determined.

When it comes to specific kidney illnesses (such as nephrogenic diabetes insipidus), this is not the case.

In nephrogenic diabetes insipidus, the kidneys generate a high volume of dilute urine because the renal tubules fail to react to vasopressin (antidiuretic hormone) and are unable to reabsorb.

Sedimentin urine may be inspected under a microscope to see if a kidney or urinary tract problem is present, providing valuable information.

Someone suffering from renal or urinary tract disease tends to excrete more cells, which can accumulate in the urine when it is centrifuged or allowed to settle. If the urine is centrifuged or allowed to settle, the cells can form a sediment that can be collected and analyzed later.

Urine Culture

A urine culture is a test that is used to identify microorganisms (such as bacteria) in the urine that may be responsible for the ailment. It is possible for bacteria to enter the urinary tract and produce an infection of the urinary tract (UTI). It is necessary to add a sample of urine to a chemical that encourages the development of germs. If no germs appear to be growing, the culture is considered negative. If germs proliferate, the culture is said to be positive. It is possible to determine the kind of germ by using a microscope or chemical testing.

This may be due in part to the fact that the female urethra is shorter and closer to theanus than the male.

Men also have an antibacterial substance in their prostate gland that helps to reduce their chance of developing prostate cancer.

Why It Is Done

When a urine culture is performed, it may be determined whether symptoms such as discomfort or burning when peeing are caused by a urinary tract infection (UTI). The test can also be used to detect the origin of a UTI, assist in determining the most effective therapy for a UTI, and assess whether the treatment has been effective.

How To Prepare

You will need to obtain a urine sample for testing purposes. You will need to consume enough water and refrain from peeing in order to be able to provide a urine sample. Because bacterial counts will be greater in the first pee of the day, the first urine of the day is the best. It is best not to urinate just before taking this test.

How It Is Done

It is possible that you will be requested to collect a clean-catch midstream urine sample for testing purposes.

Clean-catch midstream urine collection

This approach aids in protecting the urine sample from germs that are generally located on the penis or vaginal area of the subject.

  1. Before collecting the pee, wash your hands well. If the collecting cup has a lid, carefully remove it from the cup. Place the lid on the table with the inside surface facing up. Don’t let your fingertips come into direct contact with the interior of the cup
  2. Make sure the region surrounding your genitals is clean.
  • Men should retract their foreskin if they have one, and wipe the head of their penis with medicated towelettes or swabs
  • Women should spread open the vaginal folds of skin with one hand
  • And men should retract their foreskin if they have one. Then she can use her other hand to wipe the region surrounding the urethra with medicated towelettes or swabs, which will relieve the pain. Ideally, she should clean the region from front to back in order to prevent bacteria from the anus from spreading over the urethra.
  1. Begin urinating into a toilet or urinal as soon as possible. While urinating, a lady should keep her vaginal folds apart
  2. Once the urine has flowed for several seconds, she should insert the collecting cup into the urine stream. Collect approximately 2 fl oz (59 mL) of urine without interfering with the flow of the urine. Move the cup out of the way of the urine flow. Do not allow the rim of the cup to come into contact with your genital area. It is not acceptable to have toilet paper, pubic hair, stool (feces), menstrual blood, or anything else in the urine specimen. Complete your urination into the toilet or urinal. Replace the lid on the cup with care and tighten it down. Then you should return the cup to the laboratory. If you collect the urine at home and are unable to make it to the lab within an hour, place it in the refrigerator.

Other collection methods

In order to obtain a urine sample, a health practitioner must insert a urinary catheter into the bladder of the patient. This procedure is often used to collect urine from a patient in the hospital who is severely unwell or who is unable to give a clean-catch sample using the traditional method. The use of a catheter to collect a urine sample lowers the likelihood of microorganisms from the skin or vaginal region becoming contaminated with the urine sample. It is possible to collect a urine sample from a tiny toddler or infant by utilizing a specific plastic bag that has been taped shut around the entrance (a U bag).

The bag is then carefully removed from the body.

(This procedure is referred to as a suprapubic tap.)

How long the test takes

It will only take a few minutes to complete the exam.

How It Feels

In most cases, there is no discomfort or suffering associated with this test.


There are no known dangers associated with undergoing this test.


The findings of a urine culture are normally available in one to three days. Some bacteria, on the other hand, take longer to proliferate in the culture. As a result, it is possible that results will not be accessible for many days.

Urine culture

Normal: No bacteria or other germs (such asfungi) grow in the culture. The culture result isnegative.
Abnormal: Organisms (usually bacteria) grow in the culture. The culture result ispositive.


As of September 23, 2020, the information is current. Author:Healthwise StaffMedical Review: E. Gregory Thompson, MD – Internal MedicineE. Gregory Thompson, MD – Internal Medicine Dr. Adam Husney is a Family Medicine specialist. Dr. Elizabeth T. Russo specializes in Internal Medicine. As of September 23, 2020, the information is current. Written by a member of the Healthwise teamMedical Review: E. Gregory Thompson, MD, Internal Medicine Dr. Adam Husney is a Family Medicine specialist. Dr. Elizabeth T.

Urine Culture: Purpose, Results & What To Expect

A urine culture test examines a sample of urine for the presence of germs (microorganisms) that might cause illness. Urine is the liquid waste produced by your body (pee). Growing microorganisms such as bacteria and yeast in a laboratory setting is referred to as culture in medical terminology. A urine sample is supplemented with growth-promoting chemicals in a laboratory. If bacteria or yeast (a fungus) are present, they begin to reproduce and spread. An infection in your urinary system is indicated by the presence of this growth.

What is the purpose of a urine culture?

Urine cultures are ordered by healthcare professionals to screen for urinary tract infections (UTIs). A urinary tract infection (UTI) can arise when bacteria enter your urethra, which is the tube that transports urine from your body. UTIs are most commonly caused by bacteria in your bladder (the organ that holds urine). They have the potential to spread to your kidneys (the organs responsible for the production of urine) or your prostate. A urine culture test will also reveal the following:

  • The bacteria or yeast that is causing the illness must be identified before your healthcare practitioner can choose the most appropriate therapy for you. It is also necessary to know whether the bacterium is resistant to antibiotics.
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Who needs a urine culture?

If you have recurrent or difficult-to-treat urinary tract infections, your healthcare professional may recommend a urine culture test. In most cases, only those who are experiencing symptoms of a UTI require a urine culture. UTIs can affect people of either gender, although women are more likely than males to experience them. The following are risk factors for recurrent UTIs:

  • Having diabetes
  • Having frequent sexual relations, especially with new partners or if you use spermicides
  • Having diabetes Kidney disease, particularly kidney stones, is a common occurrence. Problems with completely emptying your bladder, particularly if you use a urinary catheter to drain urine
  • Due to autoimmune illnesses, organ transplantation, or cancer treatment procedures, the immune system has been weakened.

What is the difference between a urine culture test and urinalysis?

A urine sample is required for both a urinalysis and a urine culture. Aurinalysis may be performed first by your healthcare professional. In a shorter amount of time, this test checks urine for the presence of red and white blood cells, as well as bacteria, which can indicate the existence of an illness. A urinalysis will not be able to identify the precise bacterium that is causing the UTI. A urine culture is required to obtain this information.

Can a urine culture detect a sexually transmitted disease (STD)?

Historically, healthcare practitioners employed bacterial culture tests to identify sexually transmitted diseases (STDs) such as chlamydia and gonorrhea. This was not a urine culture test, as the name implies. Instead, healthcare practitioners cultivated (cultured) cells from within the urethra to test their effectiveness.

The indications of these STDs may now be detected by the use of a urine test. However, when it comes to diagnosing an STD, healthcare experts tend to rely on more precise measures such as analyzing fluid from the vaginal or penis.

Can a urine culture detectE. coli?

A urine culture test can be used to identify the bacterium Escherichia coli (E. coli). The bacteria E. coli is the most common cause of urinary tract infections. E. colibacteria are bacteria that dwell in the digestive system and are discovered in human feces. If fecal matter makes its way from your anus to your vulva or penis, germs can enter your urethra and cause a urinary tract infection (UTI). Close to your anus is your vulva (the outside portion of your female genitals, which is where your vagina and urethra are located).

Everyone, regardless of gender, should wipe their hands from front to back after using the bathroom in order to avoid this type of illness.

Can a urine culture detectStreptococcus(strep) infections?

Group B strep bacteria are a less prevalent cause of urinary tract infections (UTIs). These bacteria, which can be found in the urinary and digestive systems, can be detected using a urine culture. Group B strep is more likely to cause urinary tract infections (UTIs) in pregnant women. It is essential to treat the infection with antibiotics before to delivery. Preventing the transmission of microorganisms to a baby through treatment is important for pregnant women. Antibiotics are also required in the case of a strep B infection in a baby.

Test Details

Before delivering a urine sample, your healthcare professional will inform you whether or not you need to take any particular precautions. Your healthcare practitioner may ask you to do one or more of the following:

  • Please refrain from peeing for at least an hour before providing a urine sample. Ensure that you drink at least 8 ounces of water 20 minutes before the sample collection to ensure that there is enough urine for testing. First thing in the morning, collect a sample of your pee.

What happens during a urine culture?

A clean catch pee sample is required for a successful urine culture. In this context, a urine sample that is as devoid of external pollutants as possible, such as natural bacteria that dwell on your skin, is meant. You may choose to submit this sample in person at your healthcare provider’s office or at a laboratory testing center. In some cases, you may be able to collect the urine sample at your residence. The following are the steps:

  1. Obtaining a clean catch urine sample is critical to the success of the urine culture. It refers to a urine sample that is as devoid of external pollutants as feasible, such as typical germs found on your skin. This sample can be collected at your healthcare provider’s office or at a laboratory testing facility. The urine sample may be collected at your residence in specific circumstances. To begin, complete the following steps.

What are other ways to collect a urine sample?

A healthcare professional may utilize one of the following ways to treat newborns and young children, as well as people who are unwell, hospitalized, or elderly:

  • It is necessary to catheterize your bladder in order to reach it. Your healthcare practitioner will place a catheter (a thin, flexible tube) via your urethra. A sterile collecting bag is placed over the catheter to catch the urine as it exits. When you have an aspiration, your healthcare professional inserts a small needle into your bladder through numbed abdomen skin in order to pull urine into a collecting bag. Urine collection bag (U bag): For babies and young children, you may want to place a urine collection bag on their penis or to their vulva with sticky glue to prevent them from peeing in their diaper. After your kid has urinated, you should dump their pee into a container with a lid. Preserve the container in the refrigerator until you deliver it to the office or lab of your healthcare practitioner.

How long does a urine culture take?

The process of providing a clean urine sample takes only a few minutes. Making a poop in the cup shouldn’t take long at all. Do take the time to clean your vulva or penis before you pee in order to guarantee a clean urine sample is collected during the test. After receiving your urine sample, the lab will grow the culture in an incubator for 24 to 48 hours before testing it. The temperature of the incubator is set at 98.6 degrees Fahrenheit, which is the typical temperature for the human body (37 degrees Celsius).

What are the risks of a urine culture?

The clean catch method is a fairly safe way to collect a urine sample from a patient. When using the catheter or needle approach, there is a small chance of contracting an infection.

Results and Follow-Up

In certain cases, the lab may take up to three days to perform the test and deliver the findings back to you.

A phone call or an appointment will be scheduled with your healthcare professional in order to go through the results.

What does a positive urine culture test result mean?

If bacteria develop in the urine culture test and you are experiencing symptoms of infection or bladder discomfort, you most likely have a urinary tract infection (UTI). An abnormal test result or a positive urine culture test result are both possible outcomes. The bacteria in the cultivated sample are subjected to an antibiotic sensitivity test in the laboratory. This test, which is also known as an antibiotic susceptibility test, determines the type of bacteria that is causing the illness as well as which antibiotics the bacterium is susceptible to, which means which medications will kill or inhibit the bacteria.

Certain antibiotics are effective exclusively against specific microorganisms.

This signifies that the antibiotic is no longer effective at preventing the growth of that particular species of bacteria.

What does a negative urine culture test result mean?

It is possible to have a positive, or normal, urine culture test result if the urine sample did not contain any bacteria or yeast. You do not have a urinary tract infection. A lab’s typical test results range might vary based on the lab that is doing the test. If you continue to have symptoms such as painful urination (dysuria) or blood in the urine (hematuria), your healthcare practitioner may recommend imaging scans or other testing. These symptoms may be indicative of bladder cancer in certain cases, however this is extremely unusual.

What should I ask my healthcare provider?

You might wish to inquire with your service provider about the following:

  • Inquire with your service provider about the following items:

An announcement from the Cleveland Clinic A urine culture is performed in order to identify microorganisms that cause UTIs. If you have a urinary tract infection, an antibiotic sensitivity test might help you identify the bacterium that is causing it. This information assists your healthcare professional in selecting the most appropriate medication to treat your infection. Following therapy, a urine culture test may be performed to check that your infection has been eradicated. For the majority of people, a simple clean catch urine sample is all that is required by the lab for the test.

If you have a history of urinary tract infections, speak with your healthcare practitioner about actions you may take to reduce your risk of developing them.

Understanding urine tests

According to a statement from Cleveland Clinic It is performed to determine whether bacteria that cause UTIs exist in the urine. Uncommon urinary tract infections (UTIs) are diagnosed by an antibiotic sensitivity test. In order to choose the most effective medication to treat your infection, your healthcare professional will need this information. After therapy, a urine culture test may be performed to check that your infection has been eradicated completely. In most cases, a simple clean catch urine sample is all that a lab need to conduct a testing procedure on the individual.

A catheter may be used to collect your urine sample in rarer instances by a healthcare practitioner. Ask your doctor about actions you may take to reduce your chance of acquiring urinary tract infections if you have a history of getting them.

What do the characteristics of urine tell us?

The removal of urine is critical for the proper functioning of several body systems. When it comes to water regulation, for example, it also eliminates compounds that are created during metabolic processes but are no longer necessary for the body to function properly. Toxic compounds found in food or medication are examples of this. Tests on the urine can aid in the early detection of disorders of the urinary system, as well metabolic diseases such as diabetes and liver disease. The color, odor, and volume of pee in the urine can all suggest whether or not there is a problem.

Urine that is cloudy or flaky might indicate the presence of a urinary tract infection.

At order to learn more, the urine must be examined either with a test strip or in a laboratory.

Two of them can also be completed at home, however the other three must be completed in a laboratory setting.

How do you give a urine sample?

A sample of urine can be contaminated by germs, cells, and other contaminants, therefore it is a good idea to thoroughly clean the genital region with water – rather than soap – before providing the sample. The use of “clean” midstream urine is necessary in order to obtain an accurate result while avoiding bacterial contamination. By stopping the flow of pee after a few seconds and then collecting the middle section of the urine in a cup, you may get a sample of midstream urine. When you go in for your specific test, your doctor will let you know if there is anything else you should be concerned about.

Rapid urine test

A fast pee test is the most efficient method of testing urine. A test strip with little square colored fields on it is dipped into the urine sample for a few seconds, and the results are read out loud. After then, you’ll have to wait a little while for the outcome to be revealed. The color of the fields on the test strip changes depending on the concentration of the specific chemical you are testing for at the time of the test. The colors of the fields are then compared to a color table to determine which is the most accurate.

It demonstrates which colors correspond to normal and abnormal levels.

It is common practice to do rapid urine tests as part of normal exams, such as those performed at a family doctor’s office, during prenatal visits, when a patient is being admitted to the hospital, or before to surgery.

It is used by certain persons with diabetes to check their blood sugar levels.

A prescription is not required for the test strips, which may be purchased at any pharmacy or over the internet. However, they are not designed for use in self-diagnosis and should only be used in conjunction with a medical professional.

What substances can a rapid urine test detect?

A fast urine test is the quickest and most accurate method of determining urine concentration. A test strip with small square colored fields on it is dipped into the urine sample for a few seconds before reading the results. It is necessary to wait a short period of time before seeing the results. The color of the fields on the test strip changes depending on the concentration of the specific chemical you are testing for. A color table is then used to compare the colors of the fields that have resulted.

  • Which colors represent normal and abnormal levels is depicted in the chart below.
  • Rapid urine tests are typically performed as part of normal checkups, such as those performed at a family doctor’s office, during prenatal visits, when a patient is admitted to the hospital, or before to surgery.
  • Many diabetes patients use this test to monitor their blood glucose levels.
  • offices, hospitals, and even your own house may do rapid urine testing.
  • The fact is that they are not meant for use in self-diagnosis and should only be used in conjunction with a physician.
  • Acidity of the urine is measured by the PH value (pH value). According to diet, normal values vary from around 5 to 7
  • Values under 5 are too acidic, whereas values above 7 are not acidic enough
  • Normal values range from about 5 to 7
  • Protein (which is seldom seen in urine)
  • Sugar (glucose, which is not often detected in urine)
  • Nitrite (which is not typically found in urine)
  • Ketone (which is a metabolic product, which is not typically seen in urine)
  • It contains bilirubin, which is a breakdown component of hemoglobin that is not normally detected in urine. Urobilinogen (a bilirubin breakdown product that is not typically seen in urine)
  • Urobilinogen (a bilirubin breakdown product that is not usually found in urine)
  • Red blood cells (erythrocytes), which are not often detected in urine
  • White blood cells (leukocytes), which are also not typically seen in urine
  • And platelets.
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What do the results tell us?

If the findings are beyond the usual range, you can use the package insert or the color chart on the package to establish whether they are outside the normal range. In order to determine whether or whether there is an increased risk of producing urinary stones, the pH value, for example, can be measured. As a result, if the pH level is excessively acidic, this will occur (if the value is below 5). A pH level greater than 7 may indicate the presence of a bacterial urinary tract infection. Tests that measure other things can aid in the detection of additional problems:

  • Using the package insert or the color chart on the package, you may establish whether or not the findings fall within the typical range of results. In order to determine if there is an increased risk of producing urinary stones, the pH value, for example, can be measured. If the pH is excessively acidic, this is what happens (if the value is below 5). In some cases, a pH value greater than 7 indicates the presence of bacterial urinary tract infection. It is possible to uncover other abnormalities with tests that measure other things:

If the findings of the test are abnormal, you should consult with a doctor. The findings of quick urine tests are not always trustworthy, just as they are with other tests. As a result, it may be beneficial to have a more in-depth test performed in a laboratory.


Urinalysis is a first-line basic test that evaluates the key characteristics of the blood. It is routinely conducted when patients are admitted to the hospital or before surgery as part of a regular assessment and is also performed frequently while people are undergoing surgery. It can also be used to check for aberrant findings after a fast urine test has been performed. In a laboratory, a complete urinalysis is performed. Typically, there are three phases involved:

  1. The color, cloudiness, and concentration of the urine are all evaluated. The chemical composition of the urine is determined by utilizing a test strip. Examination of the urine under a microscope for the presence of germs, cells, and cell fragments

Red blood cells (top), white blood cells (center), and a cast of clumped-together white blood cells (bottom) are shown under a microscope while examining the solid sections of urine (below).

Urinalysis is used to determine the source of – or to monitor – urinary tract infections, urinary system hemorrhage, kidney or liver illness, and other conditions. It can also be used to treat diabetes, some blood illnesses, and bladder stones, among other things.

What does urinalysis test for?

An urinalysis, in addition to testing for the chemicals that may be identified with a quick test, can additionally check for the following things:

  • It contains creatinine, a breakdown product of muscle metabolism that serves as a sign of renal function. Bacteria (which is unusually common in urine)
  • Urinary casts (cylindrical, stuck-together structures that form in the renal tubules and are not frequently seen in urine)
  • Urinary casts (cylindrical, stuck-together structures that form in the urinary bladder)
  • In urine, crystals are observed if there are significant quantities of particular compounds in the urine
  • Crystals are not normally found in urine. ureteric epithelial cells (cells that line the ureter, bladder, and urethra)
  • Urethral epithelial cells

What do the results tell us?

Aurinalysis can also be used to detect symptoms of other disorders, such as those associated with diabetes and kidney disease.

  • High quantities of cholesterol in the urine, for example, might result in the formation of cholesterol crystals. urinary casts are often indicative of kidney illness, such as an inflammation of the renal pelvis
  • However, they can also be an indication of other conditions.

An abnormal result may necessitate further discussion with a doctor, who may then order more specific testing, such as a blood test.

Urine culture

A urine culture is a test that is performed in a laboratory to determine whether or not urine contains microorganisms. A sample of midstream pee is collected and placed in a collection container. In order for the germs to develop, little plates containing a growth medium that allows them to do so are placed into the sample and the container is carefully closed. The urine culture is then put in an incubator for one to two days to allow the bacteria to grow. There might be visible colonies formed in the urine if there are bacteria or fungus present.

When placed in an incubator for two to four days, they become apparent.

What can urine cultures test for?

Urine cultures can be performed to determine whether or not there are bacteria or fungus present in the urine. Because of the size, shape, and color of the colonies, you can frequently tell what sort of bacteria or fungi they are before you even see them. This is because bacteria and fungi are classified according to their size, shape, and color.

What do the results tell us?

When testing for a urinary tract infection, urine cultures are typically performed to identify bacteria and fungus present in the urine. The type of antibiotic to be used is typically established at the same time as the presence of bacteria is discovered through laboratory examination.

24-hour urine collection

It is necessary to collect urine during a 24-hour period for this examination: The initial pee sample taken after waking up is not utilized, but the time at which the sample was taken is recorded. For the following 24 hours, every single drop of pee is collected in a container and disposed of appropriately. Once the 24-hour period has expired, you should empty your bladder one more time, and the pee will be added to the sample that has already been collected. The container for the urine sample will be given to you by your doctor.

A refrigerator is recommended for the whole 24-hour period in which the urine is to be stored.

What can be tested with a 24-hour urine sample?

It is possible to determine the quantity of specific compounds (such as proteins, hormones, salts, and metabolic products) expelled from the body using 24-hour urine samples.

What do the results tell us?

The results of the test can tell us a variety of things, such as how much protein and creatinine is in the urine. If the kidneys are filtering out too little of the metabolic product creatinine from the bloodstream, this indicates that the kidneys are not functioning correctly. Proteinuria, a disorder characterized by high amounts of protein in urine, can be caused by a variety of illnesses including heart failure, diabetes, inflammation of the renal pelvis, urinary tract infections, kidney disease, and kidney cancer.

In order to identify those problems, urine is frequently collected over a 24-hour period over a number of days and then analyzed for the presence of those disorders.

Pregnancy tests

A variety of tests are available to determine whether or not you are pregnant if your menstrual cycle is late. However, they are not completely dependable. The majority of tests can already tell whether or not a woman is pregnant eight to ten days after her period is scheduled to arrive. They are typically performed in the morning after waking up, much as quick urine tests, and require a urine sample to be collected. The packaging insert has detailed instructions on how to use the product. Pregnancy tests are available for purchase in pharmacies, drugstores, department shops, and on the internet, among other places.

What can be checked with a pregnancy test?

This particular hormone called human chorionic gonadotropin (hCG) is found in the urine of pregnant women because it is created in the placenta.

What do the results tell us?

Many women who are interested in learning whether or not they are pregnant may first perform a pregnancy test. If a woman performs the test too soon, if she is taking medication, or if she drinks a lot of fluids before performing the test, the findings may be inaccurate. Only a doctor can determine with certainty whether or not you are pregnant.

Other urine tests

Drugs can also be identified in urine for a period of time after they have been consumed. Cannabis can be identified up to many weeks after it has been used, depending on the type of test performed. Drugs such as cocaine, ecstasy, and heroin can be detected in test results for up to five days after use. There are a variety of tests that may be utilized in this situation as well: Rapid testing can provide police with findings on the spot, whereas conventional drug tests must be forwarded to a laboratory for analysis.


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  • Pschyrembel’s Klinisches Wörterbuch De Gruyter, Berlin, Germany, 2017. Working Conditions and Diagnosis by Thomas L. Identification and evaluation of laboratory findings in the context of medical diagnosis 2007
  • Marburg, Germany: Medizinische Verlagsgesellschaft. The material on IQWiG health is produced with the goal of assisting individuals in understanding the advantages and disadvantages of the most common treatment choices and health-care services available. Because IQWiG is a German institute, part of the material presented here is specific to the German health-care system, as is the case with many other websites. Speaking with a doctor about the suitability of any of the choices discussed above in a particular situation can be very helpful. Individual consultations are not available from us. All of our material is based on the findings of high-quality research investigations. Health care professionals, scientists, and editors collaborate in the writing of the book, which is then evaluated by outside specialists. Our techniques include a full description of the process through which our health information is created and updated.

Urine Culture – Clean Catch

A urine culture is a laboratory test that is used to determine if a urine sample contains bacteria or other pathogens. It may be used to screen for a urinary tract infection in both adults and children, according to the manufacturer.

Alternative Names

urine for culture and sensitivity testing

How the Test is Performed

A clean catch urine sample will be taken in the majority of cases, either at your health care provider’s office or at your residence. To collect the urine, you will need to utilize a specific kit. An alternative method of collecting a urine sample is to put a thin rubber tube (catheter) into the urethra and into the bladder. Your provider’s office or the hospital will have someone complete this task for you. The urine is drained into a sterile container, and the catheter is then pulled out of the bladder.

The urine is sent to a laboratory for testing to detect whether or not bacteria or yeast are present in the urine sample.

How to Prepare for the Test

Try to collect the sample after your pee has been sitting in your bladder for 2 to 3 hours, if at all feasible.

How the Test will Feel

The catheter may cause you to feel pressure when it is being inserted.

The urethra is numbed with the use of a specific gel.

Why the Test is Performed

If you are experiencing signs of a urinary tract infection or bladder infection, such as discomfort or burning when peeing, your healthcare professional may recommend this test. After you have been treated for an illness, you may be required to have a urine culture taken. This is done to ensure that all of the bacteria has been eliminated.

Normal Results

“Normal growth” is a perfectly normal outcome. This indicates that there is no infection present. In certain cases, the normal value ranges may change somewhat between various laboratories. Some laboratories employ various methods of measurement or examine different substances. Speak with your doctor about the significance of the specific test findings that you received.

What Abnormal Results Mean

When bacteria or yeast are identified in the culture, the test is either “positive” or “abnormal.” This indicates that you have a urinary tract infection or a bladder infection, which is likely the case. Other tests may be performed to assist your physician in determining which bacteria or yeast is causing the illness and which antibiotics will be most effective in treating it. It is possible to find more than one species of bacteria in a culture, or simply a little number of bacteria in a culture.


If your provider uses a catheter, there is a very small chance that a hole (perforation) will develop in the urethra or bladder.


If you have been taking antibiotics, it is possible that you will have a false-negative urine culture.


Dean, A.J., and Lee, D.C. Microbiologic and analytical procedures performed at the bedside. Roberts and Hedges’ Clinical Procedures in Emergency Medicine and Acute Care is an edited collection by Roberts JR, Custalow CB, and Thomsen TW (eds.). 7th edition, Philadelphia, PA: Elsevier Science; chapter 67. Germann CA, Holmes JA. Germann CA, Holmes JA Selected urologic diseases are listed below. Emergency medicine concepts and clinical practice are covered in Rosen’s Emergency Medicine: Concepts and Clinical Practice.

The ninth edition, Philadelphia, PA: Elsevier; chapter 89.

Campbell-Walsh Urology, edited by Wein AJ, Kavoussi LR, Partin AW, and Peters CA, is available online.

Urinalysis – Mayo Clinic

A urinalysis is a test that is performed on your pee. Urinary tract infections, renal illness, and diabetes are just a few of the conditions for which it is used to diagnose and treat patients. A urinalysis is a procedure that involves examining the appearance, concentration, and content of urine samples. An infection of the urinary system, for example, might cause urine to appear hazy rather than clear. In certain cases, increased amounts of protein in the urine might indicate the presence of renal disease.

Why it’s done

A urinalysis is a frequent test that is performed for a variety of reasons, including:

  • A urinalysis may be performed as part of a standard medical exam, pregnancy checkup, or pre-surgery preparation, among other things. When you’re admitted to a hospital, it may be used to screen for a number of problems, such as diabetes, renal disease, or liver disease
  • Or it might be used to screen for a variety of disorders, such as cancer. Urinalysis may be suggested if you are experiencing stomach discomfort or back pain or if you are experiencing frequent or painful urination, blood in your urine, or other urinary issues. A urinalysis can aid in the identification of the underlying cause of these signs and symptoms. Whenever you’ve been diagnosed with a medical problem, such as kidney disease or an infection of the urinary tract, your doctor may prescribe that you get your urine tested on a regular basis to monitor your health and treatment.
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A urine sample may also be used for other tests such as pregnancy testing and drug screening, although these procedures check for compounds that aren’t detected by a standard urine analysis.

How you prepare

If you’re merely having a urinalysis, you can eat and drink as much as you like before the test. In the event that you are scheduled for further exams, you may be required to fast before the test. Specific instructions will be provided to you by your health-care professional. Many medicines, including over-the-counter pharmaceuticals and dietary supplements, might have an impact on the findings of a urinalysis. Inform your doctor about any drugs, vitamins, or other supplements you are taking before having a urinalysis performed.

What you can expect

You may choose to collect a urine sample at home or at the office of your health-care provider. Typically, providers hand out containers for collecting urine samples. It is possible that you may be requested to collect the sample at your residence first thing in the morning, when your pee will be at its most concentrated. It is possible that you will be required to collect the sample in the middle of the process, utilizing a clean-catch approach. The following are the stages involved in this method:

  • Cleanse the entry of the urine bladder. Women should spread their labia and clean from the front to the back of their bodies. Men should clean the tip of their penis with a damp cloth. start using the toilet and urinating into it Pass the collecting container into your urine stream
  • This will help to prevent infection. Fill the collection container with at least 1 to 2 ounces (30 to 60 milliliters) of urine
  • Complete your urination in the toilet
  • Deliver the sample in accordance with the instructions provided by your health care practitioner. Refrigerate the sample if it cannot be delivered to the specified place within 60 minutes after its collection, unless your provider has instructed otherwise.

It may be necessary to put a thin, flexible tube (catheter) through the entrance of the urinary tract into the bladder in order to collect a urine sample in some instances. The urine sample is taken and forwarded to a laboratory for testing. You are free to resume to your normal activities right away.


An examination of your urine sample using three methods is performed during a urinalysis. These methods are: visual examination; dipstick examination; and microscopic examination.

Visual exam

The look of the urine is examined by a lab professional. Urine is usually clear in color. The presence of cloudiness or an odd odor may suggest the presence of a condition such as an infection. The presence of protein in urine might cause it to appear frothy. The presence of blood in the urine might cause it to appear red or brown. Urine color might be affected by what you’ve eaten recently as well as by some medications you’re taking. Beets and rhubarb, for example, may cause your urine to become crimson.

Dipstick test

A dipstick — a small, plastic stick with chemical strips attached to it — is inserted into the urine sample. The color of the chemical strips changes if specific compounds are present or if their concentrations are higher than normal limits. A dipstick test looks for the following things:

  • Acidity is a term used to describe the state of being acidic (pH). In urine, the pH level shows the quantity of acid present in the urine. In some cases, a high pH level might suggest a kidney or urinary tract disease
  • Concentration The concentration of the particles in your urine may be determined by measuring the concentration of the particles. A greater than usual concentration is frequently caused by a lack of fluid intake
  • Protein intake is also inadequate. Protein concentrations in urine are typically low. In most cases, small increases in protein in urine are not a cause for worry, but bigger quantities may signal a kidney disease
  • Sugar. Most of the time, the amount of sugar (glucose) present in urine is insufficient to be identified. Following the finding of sugar on this test, it is common for follow-up testing for diabetes and ketones to be performed. Ketones found in your urine, like sugar, might be an indication of diabetes and necessitate more testing
  • Bilirubin is one such test. Bilirubin is a byproduct of the destruction of red blood cells. Normally, bilirubin is transported via the bloodstream and into the liver, where it is excreted and absorbed as part of the bile. The presence of bilirubin in your urine might suggest liver damage or illness
  • It could also be an indication of an infection. In your urine, the presence of nitrites or leukocyte esterase – a product of white blood cells — may suggest a urinary tract infection
  • Blood may be present. Additional testing is required if you have blood in your urine. Symptoms of kidney damage or infection, kidney or bladder stones, kidney or bladder cancer, and blood abnormalities can all be seen with this condition.

Microscopic exam

This test, which is sometimes done as part of a urinalysis, involves looking via a microscope at droplets of concentrated pee — urine that has been spun in a machine — to look for signs of infection. If any of the following levels are much higher than typical, you may require further testing:

  • The presence of white blood cells (leukocytes) may indicate the presence of an infection. If you have high levels of red blood cells (erythrocytes), it might indicate that you have renal illness. It could also indicate that you have a blood issue or some underlying medical condition such as bladder cancer. Infection is indicated by the presence of bacteria, yeast, or parasites. Casts, which are tube-shaped proteins, can develop as a result of renal disease. In some cases, crystals formed by chemicals in urine may be an indication of kidney stones.

A urinalysis by alone does not generally yield a definitive diagnosis in most cases. Depending on the reason your physician ordered this test, you may require follow-up if the findings are out of the ordinary. The findings of the urinalysis, in conjunction with the results of other tests, can assist your provider in determining the next steps. You should never assume that you are not sick just because you have normal test results from your urinalysis. It is possible that the sickness is detected too early, or that your urine is overly diluted.

Inform your healthcare practitioner if you are still experiencing signs and symptoms. Consult with your health-care practitioner for further information on the significance of your urinalysis findings. 14th of October, 2021

What is a Urinalysis (also called a “urine test”)?

A urinalysis is a basic test that examines a tiny sample of urine taken from the patient. It can aid in the detection of diseases that require treatment, such as infections or renal disorders. It can also aid in the detection of major disorders in their early stages, including as renal disease, diabetes, and liver disease. A urinalysis is often referred to as a “urinalysis test.” A urine test can be divided into three sections:

  • Examining visually The color and clarity of the urine will be evaluated for quality assurance purposes. Urine may seem crimson or the color of tea or cola if there is blood present. Urine that appears hazy may be caused by an infection. It is possible to have foamy pee as a symptom of renal disease.
  • Examination through a microscope In order to check for things that do not belong in normal urine and cannot be seen with the naked eye, a small amount of urine will be examined under a microscope. These things may include red blood cells, white blood cells (also known as pus cells), bacteria (germs), or crystals (which are formed from chemicals in the urine and may eventually grow larger and become kidney stones). Test using a dipstick. A dipstick is a thin, plastic stick that has strips of chemicals adhered to the end of the stick. It is dipped into the urine to test its effectiveness. If a drug is present at a concentration that is higher than normal, the strips will change color. Some of the things that a dipstick examination might look for are as follows:
  • A urine’s acidity (pH) is a measure of the amount of acid present in it. Having a pH that is higher than usual may be a symptom of kidney stones, urinary tract infections, renal issues, or other conditions. Protein is a vital building element in the body’s structure. Protein may be found in the blood of everyone. However, it should only be found in your blood and not in your urine. During this procedure, your kidneys perform an important role. Healthy kidneys eliminate waste items and excess water from your blood, but they do not remove essential nutrients such as protein from your bloodstream. The protein in your urine seeps out of your kidneys when your kidneys are harmed. Being able to detect protein in urine indicates that the kidney’s filtration units have been compromised by renal disease. Glucose (sugar) levels are often elevated in diabetics. Infection is indicated by the presence of white blood cells (pus cells). Bilirubin is a waste product that is produced by the breakdown of aged red blood cells in the body. The liver is responsible for removing it from the bloodstream. Because of its presence in the urine, it may indicate the existence of liver disease. Bloodcan It might be a symptom of an infection, a renal disease, certain medications, or even excessive physical activity. The presence of blood in the urine necessitates further testing. It does not necessarily imply that you have a major medical condition.

A urinalysis can aid in the early detection of numerous illnesses, even if you are not experiencing any symptoms. Finding and addressing an issue as soon as possible can help prevent major diseases from progressing. For More Information, Please Visit: Understanding Urinalysis and Kidney Disease: What You Should Know

Related content

Incontinence of the urinary bladder At least 10 million people in the United States suffer with incontinence, which implies that they are unable to regulate the frequency with which they urinate. In certain instances, the loss of urine is significant. Infections of the Urinary Tract Urinary tract infections are responsible for over 10 million medical visits each year, according to the National Institutes of Health. Here’s all you need to know about the situation. What is the urinary tract, and how does it work?

Urine Test: Routine Culture (for Parents)

Urine cultures are routinely performed to determine the number of germs (microorganisms such as bacteria) present in the urine sample. The urine sample will be kept in circumstances that allow germs to proliferate after it has been collected by a technician. If there is no illness, it is normal for there to be just a minimal number of bacteria in the urine. The technician will use a microscope or chemical tests to discover which types of germs are present in the culture if a high number of germs are present.

Why It’s Done

In order to identify a urinary tract infection (UTI) and determine the kind of bacteria that are causing it, a urine culture is performed. If your kid has any of the following symptoms, the doctor may prescribe a urine culture.

  • When urinating, the patient complains of a painful sensation
  • He or she has the need to pee frequently but does not produce much urine (this is referred to as urgency)
  • Has a fever that does not have a clear cause or is experiencing stomach pain when they have an abnormal regular urinalysis, especially if they have a high amount of white blood cells in their urine when you have finished therapy for a UTI, you should check to see if the infection is gone


There is no preparation necessary for the urine culture other than cleaning the region surrounding the urinary entrance before taking the sample. Inform your doctor if your kid is currently receiving antibiotics or has recently taken antibiotics.

The Procedure

The sample collection process should just take a few minutes. In the doctor’s office, your kid will be asked to pee into a sterile sample cup, which will be disposed away thereafter. It may be necessary to implant a catheter (a small soft tube) into your child’s bladder in order to get the urine samples if he or she has not been toilet trained and cannot urinate into a cup. Just before the urine is collected, it is necessary to clean the skin around the urinary entrance to prevent infection. As part of this procedure, you or your kid cleans the area surrounding the urinary hole using a specific towelette.

The idea is to catch the pee in the “middle of the stream.” The container should not come into contact with your child’s skin.

It’s sometimes ideal to take a sample first thing in the morning when your child has woken up, rather than later.

You’ll take the sample to a lab, where a technician will examine it for the presence of germs, and then you’ll return home. Make sure you follow all of the lab’s storage and shipping recommendations.

What to Expect

Because the test includes typical urination, your kid should not experience any discomfort as long as he or she is able to deliver a sample of urine. (If a catheter was used to collect urine, there may be some pain for a short period of time.) Preparation for the urine test should include keeping the region surrounding the urinary entrance clean and catching the urine sample in the middle of the stream.

Getting the Results

It will take 1-3 days for the results of the urine culture to be obtained. It is your doctor’s responsibility to go through the results with you and explain what they signify.


When submitting a urine sample for a urine culture, there are no hazards associated. If a catheterized specimen is necessary, there may be some pain for a brief period. Questions concerning this operation can be discussed with your healthcare professional at any point during the process.

Helping Your Child

Urinating to produce the samples for the test is typically a painless experience for the patient. Explain to your kid how the test will be administered and why it is being done in order to allay his or her anxieties. Make sure your youngster understands that the urinary entrance must be clean and that the pee must be collected in the middle of the urine stream to prevent infection.

If You Have Questions

If you have any queries concerning the urine culture, you should consult with your physician.

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