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Nix4Pres Nix4Pres
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Posts: 5446
Rep: 46 5
8 years ago
The heart sound produced by the closing of the aortic and pulmonary valves is:
A) S4.
B) S2.
C) S3.
D) S1.
Textbook 
Essentials of Paramedic Care Update

Essentials of Paramedic Care Update


Edition: 2nd
Authors:
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feijoafeijoa
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#1
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Rep: 63 0
8 years ago
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Nix4Pres Author
wrote...
#2
8 years ago
Thanks so much!
wrote...
#3
8 years ago
I'll do my best to answer the others now, see you around
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