An unusual complication following uroflowmetry: Water intoxication resulting in hyponatremia and seizure

Muta M. Issa, Raj S. Pruthi, Conrad Vial, Diane E. McNamara, Martha K. Terris

Research output: Contribution to journalArticle

7 Scopus citations


Uroflowmetry is considered a simple and noninvasive test in the evaluation of urinary symptoms. It requires patients to consume fluid orally for a full bladder prior to undertaking the test. Guidelines regarding the amount and rate of oral fluid intake have not been accurately defined. We report on a patient who suffered a serious complication of water intoxication with hyponatremia and seizure due to excessive water consumption and absorption during uroflowmetry. We discuss the underlying factors concerning this complication and recommend a more conservative approach to attain a full bladder in a certain subgroup of patients at risk of developing such a complication.

Original languageEnglish (US)
Pages (from-to)129-130
Number of pages2
JournalUrologia Internationalis
Issue number2
StatePublished - Jan 1 1997



  • BPH
  • Bladder outlet obstruction
  • Hyponatremia
  • Uroflow
  • Uroflowmetry
  • Water intoxication

ASJC Scopus subject areas

  • Urology

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