The most reliable screening test for _____ is measurement of 24-hour urinary free cortisol.

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Measurement of 24-hour urinary free cortisol is the most reliable screening test for Cushing syndrome. Addison disease is diagnosed through measurement of cortisol levels in blood or urine, Conn syndrome is diagnosed through measurement of aldosterone levels in blood or urine, and adrenal tumors may require imaging studies such as CT scans or MRIs for diagnosis.

The Most Reliable Screening Test for _____ Is Measurement of 24-Hour