APACHE II (Simplified) calculator
Result
3/71
Predicted ICU mortality ~4%
How to use it
- 1
Worst values in first 24h of ICU admission. Use worst (most abnormal) value for each physiological variable.
- 2
Acute Physiology Score (APS) = 12 variables. Each scored 0–4. GCS: use 15 − GCS.
- 3
ARF: doubles creatinine score. Creatinine ≥1.5 in ARF is double-weighted.
When to use it
- ICU admission benchmark
- Compare actual vs. predicted mortality for quality improvement.
- Research stratification
- APACHE II commonly used in RCTs to match baseline severity.
- Not for individual prognosis
- Population-derived — clinical judgment remains paramount.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Critical care
- Inputs
- 16
- Type
- Formula
