Draw blood in a red-top/1.0mL serum. Spin, separate and refrigerate.
DO NOT DRAW SST
Room Temperature 14 days, Refrigerated 28 days
5-7 days Performed Sun-Fri
Evaluate hirsutism and/or virilization. Congenital adrenal hyperplasia, the most common cause of adrenal androgen excess, causes an underproduction of corticosteroids and a rise in androstenedione concentrations.