At a Glance
Why Get Tested?
To help detect and monitor treatment for rare types of congenital adrenal hyperplasia (CAH); sometimes to help rule out other conditions
When to Get Tested?
When an infant has external sex organs that are not clearly male or female (ambiguous genitalia) and/or has high blood pressure (hypertension), low blood potassium (hypokalemia), or signs of excess loss of salt (salt wasting); when the most common cause for CAH, a 21-hydroxylase deficiency, has been ruled out; when a teen fails to develop secondary sexual characteristics and/or has delayed puberty
A blood sample drawn from a vein in your arm
Test Preparation Needed?