Exam

Urine Output

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Urine Output, Urine Volume, Oliguria, Anuria

  • Definitions
  1. Oliguria
    1. Decreased Urine Volume below 0.5 ml/kg/h in adults and <1 ml/kg/h in children
  2. Anuria
    1. Complete absence of Urine Output
  • History
  1. Expect infants to urinate at least three times daily at minimum
  2. Expect children and adults to urinate at least twice daily
  • Exam
  • Normal Urine Output
  1. Adult: >0.5 ml/kg/h
  2. Child: >1 ml/kg/h
  3. Infant: >2 ml/kg/h
  • Causes
  • Decreased Urine Output (Oliguria or Anuria)