You are about to perform surgery on a patient with an ASA score of 3 (American society of Anaesthesiologists). What does the score of 3 mean?
ASA score: a) Normal healthy - 1 b) Mild systemic disease, but no limitation of activity - 2 c) Severe systemic disease that limits activity but not incapacitating - 3 d) Incapacitating systemic disease which poses a threat to life - 4 e) Moribund and not expected to survive 24 hours even with operation - 5 Ref: Oxford Handbook of Clinical Specialities, Edition 8, Page 618
The patient has mild systemic disease, but no limitation of activity
The patient has severe systemic disease that limits activity but not incapacitating
The patient is moribund and not expected to survive 24 hours even with operation
The patient has incapacitating systemic disease which poses a threat to life