Table 5 Variables and their assigned severity score used in calculation of Simplified Acute Physiologic Score II (SAPS II)
Variable | Range | Points |
|---|---|---|
Patient age | < 40 years | 0 |
40-59 years | 7 | |
60-69 years | 12 | |
70-74 years | 15 | |
75-79 years | 16 | |
> 80 years | 18 | |
Type of admission | Scheduled surgery | 0 |
Medical | 6 | |
Unscheduled surgery | 8 | |
Temperature | < 39° C, < 102.2° F | 0 |
≥ 39° C, ≥ 102.2° F | 3 | |
Systolic blood pressure | ≥ 200 mmHg | 2 |
100-199 mmHg | 0 | |
70-99 mmHg | 5 | |
< 70 mmHg | 13 | |
Heart rate | ≥ 160 bpm | 7 |
120-159 bpm | 4 | |
70-119 bpm | 0 | |
40-69 bpm | 2 | |
< 40 bpm | 11 | |
Glasgow coma scale | 14-15 | 0 |
11-13 | 5 | |
9-10 | 7 | |
6-8 | 13 | |
< 6 | 26 | |
Urine output | ≥ 1 L/24 hours | 0 |
0.5-0.999 L/24 hours | 4 | |
< 0.5 L/24 hours | 11 | |
White blood cell count | < 1000/ mm3 | 12 |
1000-19,000/mm3 | 0 | |
≥ 20,000/mm3 | 3 | |
Blood urea nitrogen | ≥ 30 mmol/L, ≥ 84 mg/dL | 10 |
10-29.9 mmol/L, 28-83 mg/dL | 6 | |
< 10 mmol/L, < 28 mg/dL | 0 | |
Potassium level | < 3 mEq/L | 3 |
3-4.9 mEq/L | 0 | |
≥ 5mEq/L | 3 | |
Sodium level | < 125 mEq/L | 5 |
125-144 mEq/L | 0 | |
≥ 145 mEq/L | 1 | |
Bicarbonate level | < 15 mEq/L | 6 |
15-19 mEq/L | 3 | |
≥ 20 mEq/L | 0 | |
Bilirubin level | < 4 mg/dL, < 68.4 micromol/L | 0 |
4-5.9 mg/dL, 68.4-102.5 micormol/L | 4 | |
≥ 6 mg/dL, ≥ 102.6 micromol/L | 9 | |
PaO2/FiO2 (if mechanically ventilated or receiving CPAP) | < 100 mmHg | 11 |
100-199 mmHg | 9 | |
≥ 200 mmHg | 6 | |
AIDS | Yes | 17 |
No | 0 | |
Metastatic carcinoma | Yes | 9 |
No | 0 | |
Hematologic malignancy | Yes | 10 |
No | 0 |