ASA physical status classification
Preoperative physical status class.
Inputs
0 of 1Class
When to use
- Every anesthetic.
Pearls and pitfalls
- Add E for an emergency procedure.
- Examples: ASA II includes current smokers, BMI 30–40, well-controlled diabetes or hypertension; ASA III includes BMI 40 or higher, ESRD on dialysis, and MI more than 3 months ago.
Why use
A shared language, not a risk score by itself.
| Criterion | Points |
|---|---|
| Class: I: Normal healthy patient | +1 |
| II: Mild systemic disease | +2 |
| III: Severe systemic disease | +3 |
| IV: Severe systemic disease that is a constant threat to life | +4 |
| V: Moribund, not expected to survive without the operation | +5 |
| VI: Brain-dead organ donor | +6 |