Signin or JoinRestore Access

Third and Fourth Heart Sound Gallop

In this lesson, we present a heart sound comprised of four components: S1, S1, S3 and S4. The third and fourth heart sounds (S3 and S4) are low frequency sounds with S4 lower than S3. This type of sound can be heard in improving heart failure patients. An S3 sound gives way to an S3 S4 pattern as the patient improves.

Listen

patient torso with stethoscope chestpiece
patient position during auscultation
The patient's position should be supine.

Observe




lesson auscultation page
An error has occurred. This application may no longer respond until reloaded. Reload 🗙