Cortisol in Blood

Free Cortisol Test, Hydrocortisone Test

What To Think About

• A 24-hour urine test is used more often than a cortisol blood test to diagnose Cushing's syndrome. For more information on cortisol in urine, see the medical test Cortisol in Urine.
• Other tests that can help determine if the pituitary gland or adrenal glands are functioning properly include the adrenocorticotropic hormone (ACTH) and dexamethasone suppression tests. The ACTH stimulation test may be done when Addison's disease is suspected. For more information, see the medical tests Adrenocorticotropic Hormone and Overnight Dexamethasone Suppression Test.

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Author:	Jan Nissl, RN, BS	Last Updated: August 21, 2006
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Alan C. Dalkin, MD - Endocrinology
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