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Also known as: Corticotropin; Cosyntropin
Formal name: Adrenocorticotropic Hormone
Related tests: Cortisol, Cortrosyn (ACTH) Stimulation Test, Dexamethasone Suppression Test, Androstenedione

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At a Glance

Why Get Tested?

In conjunction with cortisol testing, to help diagnose adrenal gland problems and pituitary diseases such as Cushing syndrome, Cushing disease, Addison disease, adrenal tumors, and pituitary tumors

When to Get Tested?

When you have signs and symptoms associated with excess or deficient cortisol production; when your healthcare provider suspects that you have a hormone imbalance that could be caused by a problem with your pituitary or adrenal glands

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

The healthcare practitioner may request that you fast overnight before testing. Blood is typically drawn in the morning, about 8 a.m.