Third and Fourth Heart Sound Gallop
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
Patient Recording
Patient Recording - Half Speed Playback
Position
The patient's position should be supine.
Listening Tips
Diastole:S3 and S4 present; galloping soundWaveform (Phonocardiogram)
Observe
//embedding heart animation
Authors
These authors contributed the audio recordings and text found in this reference guide: Jon Keroes, MD,Diane Wrigley, PA, and David Lieberman.Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.
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