Cardiac Exam - Auscultation Apex

You are incorrect - our patient's acoustic events at the time of the first heart sound at the apex include a first heart sound, a second heart sound and a third heart sound (S3).

Your choice: S1 + late systolic click (SC) + S2

This is a graphic example of an S1 followed by a late systolic click (SC) and an S2.

Systolic clicks typically occur in mid-to-late systole. They are high-frequency sounds that are almost always due to mitral or tricuspid valve prolapse and are best heard in these auscultatory areas.