ASA Classifiaction

This topic has come as a question recently and though we always classify our patients as ASA but in exam writing the same topic as answer is very difficult









ASA 1 Healthy patient without organic, biochemical, or psychiatric disease




ASA 2 A patient with mild systemic disease, e.g., mild asthma or well-controlled hypertension. No significant impact on daily activity. Unlikely to have an impact on anesthesia and surgery

ASA 3 Significant or severe systemic disease that limits normal activity, e.g., renal failure on dialysis or class 2 congestive heart failure. Significant impact on daily activity. Probable impact on anesthesia and surgery

ASA 4 Severe disease that is a constant threat to life or requires intensive therapy, e.g., acute myocardial infarction, respiratory failure requiring mechanical ventilation. Serious limitation of daily activity. Major impact on anesthesia and surgery
ASA 5 Moribund patient who is equally likely to die in the next 24 hours with or without surgery




ASA 6 Brain-dead organ donor