All content on Lab Tests Online has been reviewed and approved by our Editorial Review Board.
At a Glance
Why Get Tested?
Most commonly measured in the evaluation of low testosterone (androgen deficiency) in men; also commonly used in the evaluation of women with signs and symptoms of excess male hormones (androgens)
When to Get Tested?
When you have signs and symptoms of increased or decreased testosterone and a total testosterone measurement is inconsistent with your symptoms
A blood sample drawn from a vein in your arm
Test Preparation Needed?