Valves closing: The different valves of the heart can make a snapping sound when they close like a door closing. A split s2 (racepinephrine) just means the valves close at different times. The s2 (racepinephrine) (second traditional heart sound) is commonly split because the two sides of the heart have different pressures & jobs. Often the timing of the split will vary with the breathing pattern.
Answered 11/28/2017
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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