Creatinine - urine

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Creatinine tests

Creatinine urine test

Female urinary tract

Male urinary tract

Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. This article discusses the test done to measure the amount of creatinine in your urine.

A blood test can also be used to determine your creatinine level. See: Serum creatinine

Urine creatinine test

A random urine sample or a 24-hour collection may used. For information on how to collect a 24-hour urine sample, see: 24-hour urine collection.

Your health care provider may tell you to temporarily stop taking certain medicines that may interfere with test results. Such medicines include:

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• Cephalosporins (cefoxitin)
• Cimetidine
• Cisplatin
• Gentamicin
• Trimethoprim

The test involves only normal urination, and there is no discomfort.

This test can be used as a screening test to evaluate kidney function. It may also be used as part of the creatinine clearance test. It is often used to provide information on other chemicals in the urine such as albumin or protein.

Review Date: 08/07/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).