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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.

Auscultation Sounds

auscultation sound from lesson
waveform

Patient Recording of Third and Fourth Heart Sound Gallop

patient heart or lung sound
Third and Fourth Heart Sound Gallop

Patient Recording - Half Speed

patient auscultation point for Third and Fourth Heart Sound Gallop
Third and Fourth Heart Sound Gallop

Position

Patient position for auscultation
The patient's position should be supine.

Listening Tips for Third and Fourth Heart Sound Gallop

Diastole:S3 and S4 present; galloping sound

Waveform (Phonocardiogram)



Observe Cardiac Animation for Third and Fourth Heart Sound Gallop

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Third and Fourth Heart Sound Gallop | #86




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