Performing vagal maneuvers can cause which of the following?

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Study for the EPU Electrophysiology Exam with comprehensive questions and explanations. Enhance your knowledge with flashcards and a variety of question formats to ensure you are prepared to excel!

Multiple Choice

Performing vagal maneuvers can cause which of the following?

Explanation:
Vagal maneuvers increase parasympathetic (vagal) tone to the heart, which slows the SA node and slows conduction through the AV node. This can lower the heart rate and, if the reduction is significant, decrease cerebral perfusion enough to cause fainting (syncope). Because the mechanism is slowing the heart, tachycardia is not expected, and ventricular fibrillation is not a typical effect. In most people, the result is a slower heart rate, with bradycardia potentially leading to syncope.

Vagal maneuvers increase parasympathetic (vagal) tone to the heart, which slows the SA node and slows conduction through the AV node. This can lower the heart rate and, if the reduction is significant, decrease cerebral perfusion enough to cause fainting (syncope). Because the mechanism is slowing the heart, tachycardia is not expected, and ventricular fibrillation is not a typical effect. In most people, the result is a slower heart rate, with bradycardia potentially leading to syncope.

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