Classifies patient fitness for anesthesia and surgery
When to Use
Preoperative assessment of patient fitness for anesthesia
Communication tool between anesthesiologists and surgical team
Required documentation for every anesthetic
When NOT to Use
Not a risk calculator — it is a classification system for documentation and communication
Does not account for specific surgery type or other risk factors
Should be used alongside other tools (RCRI, Gupta) for risk estimation
Select ASA Physical Status Classification
Evidence & References
ASA Physical Status Classification System. American Society of Anesthesiologists. Last approved October 2020.Link
Hackett NJ, De Oliveira GS, Jain UK, Kim JYS. ASA class is a reliable independent predictor of medical complications and mortality following surgery. Int J Surg. 2015;18:184-190.PMID: 25937154
Disclaimer: This calculator is a clinical decision aid and does not replace clinical judgment. Always consider the full clinical context when making patient care decisions.