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The given figure is the ECG of a normal ...

The given figure is the ECG of a normal human. Which one of its components is correctly interpreted below ?

A

Complex QRS- one complete pulse

B

Peak T-Initiation of total cardiac contraction

C

Peak P and Peak R together -systolic and diastolic blood pressures

D

Peak P -Initiation of left atrial contraction only

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The correct Answer is:
D
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