Third and Fourth Heart Sound Gallop G
Third and Fourth Heart Sound GallopBoth 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 Sound From Lesson
Patient Recording - Half Speed Playback
The patient's position should be supine.
Diastole: S3 and S4 present; galloping sound
Third and Fourth Heart Sound Gallop