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ICU and Critical Care

SAPS II Predicted Hospital Mortality calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Age at ICU admission (years)
Worst heart rate in the first 24 hours (beats/min)
Worst systolic BP in the first 24 hours (mm Hg)
Highest temperature in the first 24 hours (°C)
Worst oxygenation in the first 24 hours
Total urine output in the first 24 hours (L/day)
Highest serum urea in the first 24 hours (mmol/L)
Worst WBC in the first 24 hours (×10⁹/L)
Worst serum potassium in the first 24 hours (mmol/L)
Worst serum sodium in the first 24 hours (mmol/L)
Lowest serum bicarbonate in the first 24 hours (mmol/L)
Highest total bilirubin in the first 24 hours (mg/dL)
ICU admission type
Specified chronic disease present at ICU admission
points

Allowed range: 3–15 points

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Result

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Clinical inputs

  • Age at ICU admission (years)
  • Worst heart rate in the first 24 hours (beats/min)
  • Worst systolic BP in the first 24 hours (mm Hg)
  • Highest temperature in the first 24 hours (°C)
  • Worst oxygenation in the first 24 hours
  • Total urine output in the first 24 hours (L/day)
  • Highest serum urea in the first 24 hours (mmol/L)
  • Worst WBC in the first 24 hours (×10⁹/L)
  • Worst serum potassium in the first 24 hours (mmol/L)
  • Worst serum sodium in the first 24 hours (mmol/L)
  • Lowest serum bicarbonate in the first 24 hours (mmol/L)
  • Highest total bilirubin in the first 24 hours (mg/dL)
  • ICU admission type
  • Specified chronic disease present at ICU admission
  • Lowest Glasgow Coma Scale in the first 24 hours (points)Accepted range: 3 to 15

Primary source

Le Gall JR et al. A new Simplified Acute Physiology Score (SAPS II). JAMA. DOI: 10.1001/jama.1993.03510350069035. PMID: 8254858 (1993)

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