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Formal name: Pregnenolone
Related tests: 17-Hydroxyprogesterone, Cortisol, ACTH, Aldosterone, Testosterone, Androstenedione, 11-Deoxycortisol, 17-Hydroxypregnenolone

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

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?