How is Cushing syndrome diagnosed in the workup of metabolic alkalosis?

Updated: Dec 10, 2020
  • Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

To test for Cushing syndrome, measure plasma cortisol at midnight during sleep or free cortisol in a 24-hour urine study, or perform a dexamethasone suppression test.


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