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Simplified Acute Physiology Score (SAPS) II

Age, years
<40 0
40-59 7
60-69 12
70-74 15
75-79 16
>=80 18
Heart rate
If patient had both cardiac arrest (11 points) and extreme tachycardia (7 points), assign 11 points
<40 11
40-69 2
70-119 0
120-159 4
>=160 7
Systolic BP, mmHg
Worst value in 24 hours
<70 13
70-99 5
100-199 0
>=200 7
Temperature ≥39ºC (102.2ºF)
Highest temperature in 24 hours
No 0
Yes 3
GCS
Lowest value in 24 hours; if patient is sedated, record estimated GCS before sedation
14-15 0
11-13 5
9-10 7
6-8 13
<6 26
PaO₂/FiO₂, if on mechanical ventilation or CPAP
Use lowest value in 24 hours; if patient was extubated <24 hours ago, use lowest value while on mechanical ventilation
<100 mm Hg/% (13.3 kPa/%) 11
100-199 mm Hg/% (13.3-26.5 kPa/%) 9
>=200 mm Hg/% (26.6 kPa/%) 6
Not on mechanical ventilation or CPAP within the last 24 hours 0
BUN, mg/dL or serum urea, mmol/L
BUN <28 or urea <10 0
BUN 28-83 or urea 10-29.6 6
BUN >=84 or urea >=30 10
Urine output, mL/day
If in ICU <24 hours, calculate for 24 hours (e.g. if 1 L in 8 hours, then mark 3 L in 24 hours)
<500 11
500-999 4
>=1000 0
Sodium, mEq/L or mmol/L
Worst value in 24 hours
<125 5
125-144 0
>=145 1
Potassium, mEq/L
Worst value in 24 hours
<3.0 3
3.0-4.9 0
>=5.0 3
Bicarbonate, mEq/L
Lowest value in 24 hours
<15 6
15-19 3
>=20 0
Bilirubin
Highest value in 24 hours
<4.0 mg/dL (<68.4 µmol/L) 0
4.0-5.9 mg/dL (68.4-102.5 µmol/L) 4
>=6.0 mg/dL (≥102.6 µmol/L) 9
WBC, x 10³/mm³
Worst value in 24 hours
<1.0 12
1.0-19.9 0
>=20.0 3
Chronic disease
None 0
Metastatic cancer 9
Hematologic malignancy 10
AIDS 17
Type of admission
Scheduled surgical = surgery scheduled ≥24 hours prior; medical = no surgery within 1 week of admission; unscheduled surgical = surgery scheduled ≤24 hours prior
Scheduled surgical 0
Medical 6
Unscheduled surgical 8
Result:

Background

Result Interpretation

Ranges Ranges