A premature atrial contraction is a cardiac contraction that originates in which area of the heart?
A) Atrium
B) Ventricle
C) Bundle of His
D) Atrioventricular node
Correct Answer:
Verified
Q22: An electrical impulse that originates in the
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Q25: What is the normal P-R interval?
A)0.02 to
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Q30: Which of the following interventions should the
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Q32: For continuous electrocardiogram (ECG) monitoring, lead _is
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