APACHE II Scoring System by Diagnosis

 

Input
 

Admit Dx Nonoperative patients:: () ▼
Temp 36-38.4 (0) ▼
MAP 70-109 (0) ▼
HR 70-109 (0) ▼
RR 12-24 (0) ▼
A aPO2 <200 or PaO2 >70 (0) ▼
pH CO2 7.33-7.49 ; 22-31.9 (0) ▼
Na 130-149 (0) ▼
K 3.5-5.4 (0) ▼
Creat 0.6-1.4 (0) ▼
HCT 30-45.9 (0) ▼
WBC 3-14.9 (0) ▼
Age ≤44 (0) ▼
Chronic Dx No (0) ▼
Emerg Surg	No (0)
	Yes (0.603)
Glasgow

 

Results
 

Score		# index none number points score
Log OR		# index none number points score
Odds Ratio		% fraction ratio
Mortality		% fraction ratio
Decimal Precision   0 1 2 3

 

Notes

• For postoperative patients admitted to the ICU for sepsis or postarrest, use the corresponding weights for nonoperative patients.
• Chronic Health Problems: 1) Biopsy-proved liver cirrhosis 2) New York Heart Association Class IV 3) Severe COPD (eg. Hypercapnia, home O2, pulmonary Hypertension) 4) Chronic dialysis or 5) Immunocompromised.

 
Equations used
 

Score = Temp + MAP + HR + RR + AaPO2 + pHCO2 + Na + K + Creat + HCT + WBC + 15 - Glasgow + Age + ChronicDx

LogOR = -3.517 + (Score * 0.146) + EmergSurg + AdmitDx

OddsRatio = e(LogOR)

Mortality = 100 * OddsRatio / ( 1 + OddsRatio )

 

 

Calculation Details and Variables

• Equation parameters such as Emerg Surg, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0), represent the values that will be used.

 

References

1. Knaus WA, et al. APACHE II: a severity of disease classification system. Crit Care Med. 1985 Oct;13(10):818-29. PubMed ID: 3928249