APACHE Scoring table
The Scoring table for APACHE II describes how various fields we collect affect the ultimate APACHE II score.
The calculation of the store happens automatically and data collectors do not need to fit patient scores into this ranking or perform calculations.
Physiological Variables
see Field Ranges and Decimal Settings for maximum and extreme ranges
| variable | Abs Min | Warn Min | 4 | 3 | 2 | 1 | 0 | 1 | 2 | 3 | 4 | Warn Max | Abs Max |
| Temperature (C) | 24 | 25.8 | ≥41 | 39-40.9 | 38.5-38.9 | 36-38.4 | 34-35.9 | 32-33.9 | 30-31.9 | ≤ 29.9 | 42.7 | 42.7 | |
| Mean BP (mm Hg) | SBP 19,
DBP 5 |
SBP 25,
DBP 5 |
≥160 | 130-159 | 110-129 | 70-109 | 50-69 | ≤49 | SBP 308,
DBP 188 |
SBP 344,
DBP 200 | |||
| HR (beats per minute) | 5 | 10 | ≥180 | 140-179 | 110-139 | 70-109 | 55-69 | 40-54 | ≤39 | 250 | 250 | ||
| RR (breaths per minute) | 2 | 2 | ≥50 | 35-49 | 25-34 | 12-24 | 10-11 | 6-9 | ≤5 | 79 | 95 | ||
| AaDO2 (if FiO2 >= 50%) | *1 | *1 | ≥500 | 350-499 | 201-349 | <=200 | *1 | *1 | |||||
| PO2 (mm Hg) (if FiO2 < 50%) | a | 7 | 70 | 61-69 | 55-60 | ≤54 | 600 | a | |||||
| Serum CO2 (If no ABG) | a | 2 | ≥52 | 41-51.9 | 32-40.9 | 22-31.9 | 18-21.9 | 15-17.9 | ≤14 | 59 | a | ||
| Arterial pH | a | 6 | ≥7.7 | 7.6-7.69 | 7.5-7.59 | 7.33-7.49 | 7.25-7.32 | 7.15-7.24 | ≤ 7.14 | 7.97 | a | ||
| Na (mmol/L) | 70 | 100 | ≥180 | 160-179 | 155-159 | 150-154 | 130-149 | 120-129 | 111-119 | ≤110 | 190 | 200 | |
| K (mmol/L) | 1 | 1 | ≥7 | 6-6.9 | 5.5-5.9 | 3.5-5.4 | 3-3.4 | 2.5-2.9 | ≤2.4 | 9.9 | 12 | ||
| Creatinine (mmol/L)
(*Double point if yes for ARF) |
a | 5 | ≥309 | 178-308 | 133-177 | 53-132 | ≤52 | 2288 | a | ||||
| HCT (unit?) | 3 | 3 | ≥60 | 50-59.9 | 46-49.9 | 30-45.9 | 20-29.9 | ≤19 | 68 | 78 | |||
| WBC(?unit) | 0.01 | 0.02 | ≥40 | 20-39.9 | 15-19.9 | 3-14.9 | 1-2.9 | <1 | 301 | 517 |
1* FIO2 ranges acceptable from 21-100
Glasgow Coma Scale
For information on collecting and coding the values, see the Glasgow Coma Scale article.
- GCS
Age Points
The age of the patient is automatically generated from the date of birth and the date of admission when collecting data.
| Age | ≤44 | 45-54 | 55-64 | 65-74 | ≥75 |
| Points (agepts) | 0 | 2 | 3 | 5 | 6 |
Chronic Health Score
The chronic health score is calculated from Chronic Health APACHE and Admit Type for APACHE II.
The chronic health score is generated as follows:
| Points | Chronic Health Status |
| 0 | No history of chronic disease |
| 2 | Elective Post op with history of chronic disease |
| 5 | Non OP (medical) or emergency post op with history of chronic disease |
Total Apache Score
TotApache = APS + GCS + Chronic Health points+ agepts
APSpts-Acute Physiological Points
APS= scores Apache items 1 to 11 + GCS