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Adrenocorticotropic Hormone (ACTH)

Also known as: Corticotropin
Formal name: Adrenocorticotropic Hormone
Related tests: Cortisol, Cortrosyn (ACTH) stimulation test, Dexamethasone suppression test

Why should I do it?
To help diagnose adrenal and pituitary diseases such as Cushing’s syndrome, Cushing’s disease, Addison’s disease, adrenal tumors, and pituitary tumors

When should I do it?
When you have symptoms associated with excess or deficient cortisol production; when your doctor suspects that you have a hormone imbalance that could be caused by a problem in your pituitary or adrenal glands

What Kind of Sample is Needed?
A blood sample drawn from a vein in your arm

Test Preparation Needed?
Your doctor may request that you fast overnight before testing. Blood is typically drawn in the morning, about 8 a.m.