Adrenocorticotropic Hormone

ACTH (Adrenocorticotropic Hormone) Test

Why It Is Done

A test to measure ACTH is done to check for:

• A problem with the adrenal glands or pituitary gland. A high level of ACTH and a low level of cortisol (or low ACTH and high cortisol levels) could be caused by a problem with the adrenal glands. Low levels of ACTH and cortisol could be caused by a problem with the pituitary gland.
• Overproduction of ACTH. This may be caused by an overactive pituitary gland. In response, the adrenal glands release too much cortisol (one form of Cushing's syndrome).

Go to previous section	Go to top of page	Go to next section
Author:	Bets Davis, MFA	Last Updated: June 26, 2008
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine David C.W. Lau, MD, PhD, FRCPC - Endocrinology & Metabolism
© 1995-2009 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.