Sample Requirements:
1 SST tube, collected in the morning
Purpose:
Assesses adrenal gland function and helps diagnose congenital adrenal hyperplasia (CAH).
High Levels:
Suggests CAH, adrenal tumor, or polycystic ovary syndrome (PCOS).
Low Levels:
May indicate adrenal insufficiency.
Reference Range:
Males: <200 ng/dL; Females: <285 ng/dL (follicular phase)