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ACSM Personal Trainer

Category - Exercise Programming and Implementation

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What type of heart rhythm causes the atria to be stimulated by an ectopic focus rather than by the SA node?

Sinus bradycardia
Supraventricular tachycardia
Junctional arrhythmia
Atrial arrhythmias

Explanation

Answer: D - Atrial arrhythmias cause the atria to be stimulated by an ectopic focus rather than by the SA node. These can occur in healthy people, as well as those with cardiovascular disease.

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