Cortisol in Urine

24-Hour Cortisol Free Urine Test

How To Prepare

You may be asked to avoid strenuous physical activity the day before a cortisol test. You may also be asked to lie down and relax for 30 minutes before the blood test is done.

Be sure to drink enough fluids during the 24-hour urine test to prevent dehydration.

Many medicines may change the results of this test. Be sure to tell your doctor about all the non-prescription and prescription medicines you take.

Talk to your health professional about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form(What is a PDF document?).

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Author:	Jan Nissl, RN, BS Sydney Youngerman-Cole, RN, BSN, RNC	Last Updated: November 30, 2006
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Hanan Bassyouni, MD - Endocrinology and Metabolism Alan C. Dalkin, MD - Endocrinology
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