Home > Health & Wellness > Health Library > Cushing's Syndrome: Corticotropin-Releasing Hormone
The corticotropin-releasing hormone (CRH) stimulation test
helps determine whether a
pituitary tumor may be causing
Cushing's syndrome. It is sometimes done with an inferior
petrosal sinus sampling (IPSS) test.
In these tests, a small tube (catheter) is used
to collect samples from blood vessels coming from the pituitary gland near the brain and also from a vein in your arm. You will get an injection of CRH, and samples of your blood near your pituitary gland and from your arm are taken.
If these blood samples
show high levels of
adrenocorticotropic hormone (ACTH) and cortisol, it usually
indicates that the pituitary gland has a tumor.
If blood levels of ACTH and cortisol
do not rise, your doctor may then look for an
adrenal tumor or a cancerous tumor elsewhere in your
January 10, 2012
E. Gregory Thompson, MD - Internal Medicine & David C.W. Lau, MD, PhD, FRCPC - Endocrinology
How this information was developed to help you make better health decisions.
To learn more visit Healthwise.org
© 1995-2014 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Call First Nurse 24 Hours a Day for free health care advice, resources and referrals!
Ames: 515-239-6877In Iowa: 800-524-6877
Search health information online in our Mulimedia Health Library.
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Patient Privacy |
Net Learning for Employees |
MGMC PACS for Physicians
1111 Duff Avenue Ames, IA 50010 - 515-239-2011 - email@example.com
©2014 Mary Greeley Medical Center - All rights reserved.