Extra Heart Sounds (S3 and S4)

Third and Fourth Heart Sound Gallop

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.

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Position: Mitral
Chestpiece: Bell



Maneuver: Supine

Phonocardiogram

Heart Animation

Table of Contents

1	Third Heart Sound Gallop
2	Fourth Heart Sound Gallop
3	Third and Fourth Heart Sound Gallop
4	Summation Gallop at 120 beats per minute

      

Practice Drill