radioactive scan within 1 week of a cortisol test.
What To Think About
A 24-hour urine test is used more often than a
cortisol blood test to diagnose Cushing's syndrome. For more information on
cortisol in urine, see the topic
Cortisol in Urine.
Other tests that can
help determine if the pituitary gland or adrenal glands are functioning
properly include the adrenocorticotropic hormone (ACTH) stimulation test and
dexamethasone suppression tests. The ACTH stimulation test may be done when
Addison's disease is suspected. For more information, see the topics
Adrenocorticotropic Hormone and
Overnight Dexamethasone Suppression Test.
Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Fischbach FT, Dunning MB III, eds. (2009).
Manual of Laboratory and Diagnostic Tests, 8th ed.
Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.