Discussion :: Physics
- The p wave of a normal Electrocardiogram indicates
|
A.
Atrial depolarization |
|
B.
Ventricular repolarization |
|
C.
Atrial repolarization |
|
D.
Ventricular depolarization |
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Answer : Option A
Explanation :
The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria. The P wave should be upright in lead II if the action potential is originating from the SA node.
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