APACHE II Severity-of-disease Classification System

APACHE II Calculator

APACHE II (Acute Physiology And Chronic Health Evaluation II) is a severity-of-disease classification system with a final score of 0 to 71, with higher scores corresponding to more severe disease and a higher risk of death. It is determined within 24 hours of admission to an intensive care unit (ICU).

Age: Hematocrit:

WBC: Rectal Temp: F-->C

MAP MAP= [(2 x diastolic)+systolic] / 3

Heart Rate: Respiratory Rate:

Serum Sodium(meq/L) Serum K+(meq/L)

(Oxygenation)

Arterial pH:

Serum Creatinine (mg/dl):

History of severe organ insufficiency (heart, liver, kidney, other)
or immunocompromised?

Glasgow Coma Scoring:
Eye Opening: Verbal:
Motor:

Reference

Knaus WA Draper EA et al. APACHE II: A severity of disease classification
system. Critical Care Medicine. 1985; 13 (Appendix pages 828-829) PubMed