<prompt> 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?The patient has mild systemic disease, but no limitation of activityThe patient has severe systemic disease that limits activity but not incapacitatingThe patient is moribund and not expected to survive 24 hours even with operationThe patient has incapacitating systemic disease which poses a threat to life  <response>: 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 