Last reviewed:December 2019
Last updated:March  2018

Summary

Definition

History and exam

Key diagnostic factors

  • presence of risk factors
  • absence of hypovolaemia
  • absence of hypervolaemia
  • absence of signs of adrenal insufficiency or hypothyroidism
  • nausea
  • vomiting
  • altered mental status
  • headache
  • seizure
  • coma

Risk factors

  • age >50 years
  • pulmonary conditions (e.g., pneumonia)
  • nursing home residence
  • postoperative state
  • malignancy
  • medicine associated with SIADH induction
  • central nervous system (CNS) disorder
  • endurance exercise

Diagnostic investigations

Treatment algorithm

Contributors

Nephrologist

Arizona Kidney Disease and Hyptertension Center

Phoenix

AZ

Disclosures

MD declares that she has no competing interests.

Professor Emeritus of Medicine

Division of Nephrology

University of Arizona

Tucson

AZ

Disclosures

HL is an author of a reference cited in this monograph.

Peer reviewersVIEW ALL

Associate Director

Nephrology

Washington Hospital Center

Washington

DC

Disclosures

JHV declares that she has no competing interests.

Consultant Nephrologist

Renal Unit

Lancashire Teaching Hospitals

Fulwood

Preston

UK

Disclosures

LS declares that he has no competing interests.

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