ACTH (Adrenocorticotropic Hormone)

AM: <80 pg/mL; SI units: <18 pmol/L

PM: <50 pg/mL; SI units: <11 pmol/L

Lavender-top tube.

• Sample must be iced and sent to lab immediately.
• ACTH is a hormone produced by the pituitary gland. Increased levels of ACTH lead to the production of androgens and cortisol.
• Used to assess signs and symptoms of adrenocortical dysfunction.
• Useful in determining the cause of hypercortisolism.

NI Elevated levels suggest Addison's disease or Cushing's disease; decreased levels suggest Cushing's syndrome, adrenal tumor, and pituitary insufficiency.