Description
To help diagnose Cushing syndrome or primary or secondary adrenal insufficiency (Addison disease); to detect conditions affecting the pituitary or adrenal glands For a salivary cortisol test, you may be instructed to refrain from eating, drinking, or brushing your teeth for a period of time (may be some time between 15 to 30 minutes) prior to the test. Follow any instructions you are given.