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Female urinary tract
Female urinary tract


Male urinary tract
Male urinary tract


Creatinine tests
Creatinine tests


Creatinine urine test
Creatinine urine test


Creatinine - urine

Definition:

The urine creatinine test measures the amount of creatinine in urine.

Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. Creatinine can also be measured by a blood test .



Alternative Names:

Urine creatinine test



How the Test is Performed:

After you provide a urine sample, it is tested in the lab. If needed, your doctor may ask you to collect your urine at home over 24 hours . Your provider will tell you how to do this. Follow instructions exactly so that the results are accurate.



How to Prepare for the Test:

Your health care provider may tell you to temporarily stop taking certain medicines that may affect test results. Be sure to tell your provider about all the medicines you take. These include:

  • Antibiotics, such as cefoxitin or  trimethoprim
  • Cimetidine
  • Cisplatin

Do not stop taking any medicine before talking to your doctor.



How the Test will Feel:

The test involves only normal urination. There is no discomfort.



Why the Test is Performed:

This test can be used  for the following:

  • Evaluate how well the kidneys are working
  • As part of the creatinine clearance test
  • To provide information on other chemicals in the urine, such as albumin or protein


Normal Results:

Urine creatinine (24-hour sample) values can range from 500 to 2000 mg/day. Results depend on your age and amount of lean body mass.

Another way of expressing the normal range for these test results are:

  • 14 to 26 mg per kg of body mass per day for men
  • 11 to 20 mg per kg of body mass per day for women

Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results.



What Abnormal Results Mean:

Abnormal results of urine creatinine may be due to any of the following:



Risks:

There are no risks with this test.



References:

Gerber GS, Brendler CB. Evaluation of the urologic patient: history, physical examination, and urinalysis. In: Wein AJ, Kavoussi LR, Novick AC, et al., eds. Campbell-Walsh Urology. 10th ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 3.

Israni AK, Kasiske BL. Laboratory assessment of kidney disease: glomerular filtration rate, urinalysis, and proteinuria. In: Taal MW, Chertow GM, Marsden PA, et al., eds. Brenner and Rector’s The Kidney. 9th ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 25.

McPherson RA, Ben-Ezra J. Basic examination of urine. In: McPherson RA, Pincus MR, eds. Henry’s Clinical Diagnosis and Management by Laboratory Methods. 22nd ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 28.




Review Date: 8/25/2013
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, Bethanne Black, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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Morristown Medical Center

100 Madison Avenue
Morristown, NJ 07960
973-971-5000

Overlook Medical Center

99 Beauvoir Avenue
Summit, NJ 07901
908-522-2000

Newton Medical Center

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Newton, NJ 07860
973-383-2121

Chilton Medical Center

97 West Parkway
Pompton Plains, NJ 07444
973-831-5000

Goryeb Children's Hospital

100 Madison Avenue
Morristown, NJ 07960
973-971-5000

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