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S3 Heart Sound

Aka: S3 Heart Sound, S3 Gallop, S3 Gallup Rhythm, Third Heart Sound

Signs
1. S1, S2, S3 sound like "Ken-tuck-y" (lub-dub-dub)
Technique
1. Best heard in left lateral decubitus position
Causes
1. Normal
  1. Age under 40 years
  2. Third Trimester of pregnancy
2. Left or Right Ventricle Volume Overload
  1. Mitral Regurgitation
  2. Tricuspid Regurgitation
  3. Congestive Heart Failure
Resources
1. University of Washington - Third and Fourth Heart Sounds
  1. http://depts.washington.edu/physdx/heart/tech2.html

Family Practice Notebook

Patients should address specific medical concerns with their physicians.

Although access to this page is not restricted, the information found here is intended for use by medical providers.

This page was written by Scott Moses, MD, last revised on 2/6/2013 and last published on 5/14/2013.

This is one of 5887 pages in the Family Practice Notebook