Cortisol level

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Hydrocortisone test

Normal values at 8 a.m.are 6 to 23 mcg/dl. Normal value ranges may vary slightly among different laboratories.

Note: mcg/dl = micrograms per deciliter

Higher-than-normal levels may indicate:

• Adrenal tumor
• Cushing's syndrome
• Ectopic ACTH-producing tumors

Lower-than-normal levels may indicate:

• Addison's disease
• Hypopituitarism

Additional conditions under which the test may be performed:

• Acute adrenal crisis
• Ectopic Cushing's syndrome
• Pituitary Cushing's (Cushing's disease)

Review Date: 03/08/2006
Reviewed By: Robert Hurd, M.D., Department of Biology, College of Arts and Sciences, Xavier University, Cincinnati, OH. Review provided by VeriMed Healthcare Network.