Is furosemide used in the emergency department (ED) treatment 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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Furosemide increases excretion of free water and has been used along with hypertonic saline in severe cases to limit treatment-induced volume expansion. The diuresis induced by furosemide has a urine solute concentration roughly equivalent to half-normal saline; thus, excretion of free water occurs. Electrolyte free water intake can be restricted. Combining furosemide with hypertonic saline and water restriction may lead to a faster rate of correction of serum Na and requires that serum Na+ osmolality and urine osmolality be checked frequently to monitor the change in serum Na+ values and to prevent overcorrection. Attention should also be paid to the prevention of severe hypokalemia in conjunction with treatment of hyponatremia.

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