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Cardiac
compression allows the heart to maintain pump
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function by sequential filling and emptying of
its chambers
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with
competant valves maintaining the forward direction of
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flow.Palm
of one hand placed over lower sternum; heel of
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the
other rests on dorsum of the lower hand.
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To get the right speed and rhythm, count
out loud as you
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do
the compressions, saying "1 and 2 and 3 and 4 and 5!"
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Rest
on each "and," then compress on each number. Each
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series
of 5 should take about 3 seconds. Force sufficient to
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depress
sternum by 3-5cms;relaxation is abrupt.
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