Table 1

ASA-Criteria

ASA Physical Status (PS) Classification System from the American Society of Anesthesiologists

ASA PS Category
Preoperative Health Status

ASA PS 1
Normal healthy patient
ASA PS 2
Patients with mild systemic disease
ASA PS 3
Patients with severe systemic disease
ASA PS 4
Patients with severe systemic disease that is a constant threat to life
ASA PS 5
Moribund patients who are not expected to survive without the operation
ASA PS 6
A declared brain-dead patient who organs are being removed for donor purposes

American Society of Anesthesiologists (ASA) Physical Status (PS) Classification System. Categories to classify the preoperative health status of patients.

Weigand et al. Trials 2007 8:29   doi:10.1186/1745-6215-8-29