Cardiac Auscultation for OSCEs: The Listening Station

A cardiovascular OSCE guide for medical students · Updated 2026

Examiners don't just want to see you put a stethoscope on four spots. They want a systematic examiner: correct sequence, deliberate use of bell and diaphragm, timing against the pulse, and a sensible interpretation of anything abnormal. Here's how to run the listening portion cleanly under pressure.

The auscultation sequence

Move through the four valve areas in order, then the accessory positions:

1. Aortic — right 2nd intercostal space, sternal edge.
2. Pulmonic — left 2nd intercostal space, sternal edge.
3. Tricuspid — lower left sternal border, 4th–5th ICS.
4. Mitral — apex, 5th ICS mid-clavicular line.

At each site, palpate the carotid to time S1 and S2, listen with the diaphragm for high-pitched sounds, then the bell for low-pitched ones. Always auscultate the carotids for radiation/bruits.

The maneuvers that score points

• Sit forward, breathe out and hold — accentuates aortic regurgitation.
• Left lateral decubitus, bell at apex — brings out mitral stenosis, S3 and S4.
• Inspiration — accentuates right-sided murmurs (RILE: Right-sided louder on Inspiration, Left-sided on Expiration).

Narrating these as you do them shows the examiner you understand why, which is where marks live.

The real failure point: recognition

Most students can recite the sequence. Where they lose marks is the moment a murmur is actually playing and they can't name it, or worse, miss it entirely. That's a perceptual skill, and it only comes from having heard the sound many times before exam day — no amount of checklist memorization substitutes.