S4 Heart Sounds Introduction.
Introduction
Learn about the S4 heart sound, listen to examples, take short lessons and compare to other heart sounds. For all medical professionals.
Our S3 and S4 heart sound lessons can be found in this course. Secondly, our reference index is designed to provide quick access to stridor sounds, with audio tracks, listening guides and waveforms. Use this link for quick reference to heart and lung sounds.
What is an S4 Heart Sound?
Fourth heart sounds are low in frequency, occurring just before the first heart sound. It is best heard with the stethoscope's bell. The S4 heart sound creates a cadence which is like the word 'Tennessee', where the syllable 'Ten' is S4.
Listening Tips
Listen for a short, low frequency sound early in diastole. Try to match the cadence to 'Tennessee'.
Audio Playback
The patient was supine during auscultation.
Waveform
Compare To S3
The patient was supine during auscultation.
Heart Sounds Reference Guide
Our auscultation reference guide provides quick access to this sound as well as many other adventitious sounds. Each sound is described also with an audio recording and waveform.Authors and Reviewers
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Heart sounds by Dr. Jonathan Keroes, MD and David Lieberman, Developer, Virtual Cardiac Patient.
- Reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.
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Last Update: 11/9/2021
Sources
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Heart Sounds and Murmurs Across the Lifespan (with CD)
Dr Barbara Ann Erickson
Publisher: Mosby
ISBN-10: 0323020453; ISBN-13: 978-0323020459 -
Heart Sounds and Murmurs: A Practical Guide with Audio CD-ROM 3rd Edition
Elsevier-Health Sciences Division
Barbara A. Erickson, PhD, RN, CCRN - How to measure blood pressure using a manual monitor
Mayo Foundation for Medical Education and Research (MFMER) -
Heart and Lung Sounds Reference Guide
PracticalClinicalSkills.com - Manual Blood Pressure Measurement
Vital Sign Measurement Across the Lifespan
