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Urine drug screen


How the Test is Performed

Before the test, you may be asked to remove all your clothes and wear a hospital gown. You will then be placed in a room where you have no access to your personal items or water. This is so you cannot dilute the sample, or use someone else's urine for the test.


  • Men and boys should wipe the head of the penis with a moist cloth or disposable towelette. Before cleaning, gently pull back (retract) the foreskin, if you have one.
  • Women and girls need to wash the area between the lips of the vagina with soapy water and rinse well. Or if instructed, use a disposable towelette to wipe the genital area.
  • Then, in the container you are given, catch about 1 to 2 ounces of urine. Remove the container from the urine stream.
  • Give the container to the health care provider or assistant.
  • Wash your hands again with soap and water.

The sample is then taken to the lab for evaluation.

How the Test will Feel

The test involves only normal urination.

Why the Test is Performed

The test is performed to detect the presence of illegal and some prescription drugs in your urine. Their presence indicates that you recently used these drugs. Some drugs may remain in your system for several weeks, so the drug test needs to be interpreted carefully.

Normal Results

No drugs in the urine, unless you are taking medicines prescribed by your provider.

What Abnormal Results Mean


In some cases, a test will indicate a false positive. This can result from interfering factors such as some foods, prescription medicines, and other drugs.

Alternative Names

Drug screen -- urine




Update Date 1/26/2015

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