Identifying Heart sounds S1, S2

If you have difficulty identifying systole (the interval between S1 and S2) use the second hand to feel the pulse at the neck. The rising phase of the pulse corresponds to the beginning of systole and occurs immediately following S1. In other words, you hear S1 just before the raising phase of the pulse and you hear S2 during declining phase of the pulse.

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Tags: Heart sounds S1 S2

Uploaded by: ( Send Message ) on 30-11-2011.

Duration: 1m 53s