Most common cause of single S2 – Cardiology MCQ

Most common cause of single S2 – Cardiology MCQ

Most common cause of single second heart sound (S2):

a) Complete transposition of great arteries

b) Pulmonary atresia

c) Severe pulmonary stenosis

d) Inaudibility of pulmonary component (P2) due to increased anteroposterior diameter of chest in older adults

Click here for the correct answer