Third and Fourth Heart Sound Gallop - Auscultation Lesson

Both the third and fourth heart sounds (S3 and S4) are low frequency. S4 is lower than S3. This is a pattern that occurs with improvement of heart failure. That is, an S3 pattern gives way to an S3 S4 pattern as the patient improves.

Listen

virtual auscultation of patient torso




auscultation position of patient

The patient's position is supine.

Visualize

Observe





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