What are the differential diagnoses of syndrome of inappropriate antidiuretic hormone secretion (SIADH)?

Updated: Aug 16, 2019
  • Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN  more...
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The differential diagnoses of the syndrome of inappropriate antidiuretic hormone secretion.(SIADH) include other hyponatremic conditions, which can be divided into those that cause impairment in urinary water excretion and those in which renal handling of water is normal. All patients with hyponatremia should have a plasma osmolality measured to confirm hypo-osmolality.

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