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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

auscultation sound from lesson
waveform

Patient Recording

patient heart or lung sound
Second Heart Sound - Physiologically Split #1

Patient Recording - Half Speed

patient heart or lung sound
Second Heart Sound - Physiologically Split #1

Position

Patient position
The patient's position should be supine.

Listening Tips

S2:Splitting widest at peak inspiration

Waveform (Phonocardiogram)



Observe Cardiac Animation

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Second Heart Sound - Physiologically Split #1 | #34


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