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Cortisol Test

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About Our Cortisol Test

Note: Fasting is not required for this test.

The hormone cortisol (hydrocortisone) is made by the adrenal glands and is the most prominent glucocorticosteroid. It plays a key role in the maintenance of several body functions, including metabolizing carbohydrates, proteins and fats.

Cortisol tests can help determine if there is a problem with the adrenal glands or the pituitary gland. Cortisol levels increase when the pituitary gland releases adrenocorticotropic hormone (ACTH).

Cortisol levels can be affected by:

  • Infection
  • Injury
  • Stress (Emotional or Physical)
  • Strenuous Activity
  • Steroid Medications

This blood test can also be used to help diagnose Cushing syndrome, Addison disease and overall adrenal function.

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