Karyn has been having episodes of tachycardia (rapid heartbeat) associated with her congestive heart failure. The physician offers to give her a prescription for a medication to help slow the heart, but Karyn does not want to add "yet another" medication to those she is already taking. Which of the following options might help Karyn control the rapid heartbeat without medication?
A. Maze procedure
B. Vagal maneuvers
C. Increased exercise
D. Increased caffeine intake
E. Electrical shock
B. Vagal maneuvers
Vagal maneuvers such as holding the breath, straining, or putting one's face in cool water can help slow the heart rate.
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