An otherwise healthy patient with a well-controlled systemic disease requires emergency surgery. Which designation should be used if the patient is ASA II status?

• A. ASA II
• B. ASA II E
• C. ASA III
• D. ASA III E

Answer: (B)

The key idea is that the ASA physical status classification adds an emergency modifier when the surgery is urgent. A patient with mild systemic disease that is well controlled fits ASA II, but when the procedure is an emergency, the designation becomes an ASA II with the emergency modifier (E). So the correct labeling for an otherwise healthy patient with well-controlled systemic disease requiring emergency surgery is ASA II E. The emergency tag signals that the perioperative risk is higher due to the need for rapid intervention and limited time to optimize, which helps guide urgent planning, consent, and intraoperative management. If the systemic disease were not well controlled or caused functional limitation, the patient might be ASA III or higher, but in this scenario the disease is mild and controlled, and the urgency is the defining factor for adding the E.