APACHE II score
Intensive care and infectious diseases
Also known as: APACHE-II-Score · APACHE II skoru · APACHE II score (Acute Physiology and Chronic Health Evaluation II)
What it is for
APACHE II (Acute Physiology and Chronic Health Evaluation II) is a severity-of-illness score for adult intensive care unit (ICU) patients. Outline only; the point tables are in the original paper.
Classification
| Category | Description |
|---|---|
| Acute physiology | points for 12 routine measurements: temperature, mean arterial pressure, heart rate, respiratory rate, oxygenation, arterial pH, serum sodium, serum potassium, serum creatinine, haematocrit, white cell count and the Glasgow Coma Scale. |
| Age | points by age band. |
| Chronic health | points for a history of severe organ insufficiency or immunocompromise, weighted by admission type (non-operative, emergency or elective postoperative). |
| Timing | values from the first 24 hours in the ICU; the most abnormal value of each measurement is usually taken. |
| Range | 0-71 points; a higher score means more severe illness. |
Source
APACHE II: a severity of disease classification system
Crit Care Med 1985;13:818-829 (Knaus WA, Draper EA, Wagner DP, Zimmerman JE)
PMID: 3928249
- Edition
- Knaus et al. 1985 (APACHE II)
- Checked on
Summary of the published classification in our own words. Not a substitute for the original publication.
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