Age

< 40 years+040–59 years (+7 pts)+760–69 years (+12 pts)+1270–74 years (+15 pts)+1575–79 years (+16 pts)+16≥ 80 years (+18 pts)+18

Worst Heart Rate in First 24h

Worst Systolic Blood Pressure in First 24h

100–199 mmHg+0≥ 200 mmHg (+2 pts)+270–99 mmHg (+5 pts)+5< 70 mmHg (+13 pts)+13

Worst Body Temperature in First 24h

≥ 39.0°C and < 41.0°C or normal (36–39°C)+0< 39°C (fever < 39°C)+0< 36°C (hypothermia) (+3 pts)+3≥ 40°C (hyperthermia) (+3 pts for T ≥ 41°C)+3

Glasgow Coma Scale (Worst in First 24h)

PaO₂/FiO₂ Ratio (If on Mechanical Ventilation or CPAP)

Not on ventilation or CPAP, or PaO₂/FiO₂ ≥ 200+0PaO₂/FiO₂ 100–199 (+ 9 pts)+9PaO₂/FiO₂ < 100 (+11 pts)+11

Urine Output in First 24h

≥ 1.0 L/24h+00.5–0.99 L/24h (+4 pts)+4< 0.5 L/24h (+11 pts)+11

Worst BUN (Blood Urea Nitrogen) in First 24h

< 28 mg/dL (< 10 mmol/L)+028–83 mg/dL (10–29.9 mmol/L) (+6 pts)+6≥ 84 mg/dL (≥ 30 mmol/L) (+10 pts)+10

Worst WBC in First 24h

1.0–19.9 × 10³/mm³+0≥ 20.0 × 10³/mm³ (+3 pts)+3< 1.0 × 10³/mm³ (+12 pts)+12

Worst Potassium in First 24h

3.0–4.9 mEq/L+0< 3.0 or ≥ 5.0 mEq/L (+3 pts)+3

Worst Serum Sodium in First 24h

125–144 mEq/L+0≥ 145 mEq/L (+1 pt)+1< 125 mEq/L (+5 pts)+5

Worst Serum Bicarbonate in First 24h

≥ 20 mEq/L+015–19 mEq/L (+3 pts)+3< 15 mEq/L (+6 pts)+6

Worst Total Bilirubin in First 24h

< 4 mg/dL (< 68.4 µmol/L)+04.0–5.9 mg/dL (+4 pts)+4≥ 6.0 mg/dL (+9 pts)+9

Type of ICU Admission

Elective surgery patient+0Medical patient (+6 pts)+6Emergency surgery patient (+8 pts)+8

Chronic Disease

None+0Hematologic malignancy (+10 pts)+10Metastatic cancer (+9 pts)+9AIDS (+17 pts)+17

SAPS II (Simplified Acute Physiology Score II)