At a Glance
Why Get Tested?
When to Get Tested?
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 with your pituitary or adrenal glands
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.