Second Heart Sound - Physiologically Split #1
Second Heart Sound - Physiologically Split #1
During normal breathing, the timing between the aortic and pulmonic components of the second heart sound varies. This causes the second heart sound to be split. Maximum splitting occurs at peak inspiration. In the example you are hearing the splitting of the second heart sound is 60 milliseconds at peak inspiration and zero splitting at peak expiration.Auscultation Sounds
Patient Recording
Patient Recording - Half Speed Playback
Position
The patient's position should be supine.
Listening Tips
S2:Splitting widest at peak inspirationWaveform (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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