Sample Requirements:
Morning draw, SST and EDTA tubes
Purpose:
Assesses adrenal axis function using cortisol, DHEA-S, ACTH, and aldosterone to evaluate adrenal exhaustion, stress adaptation, or HPA axis dysfunction.
Reference Range:
Cortisol (AM): 6–23 mcg/dL; ACTH: 10–60 pg/mL; DHEA-S: 80–560 µg/dL