Jafar has a history of atrial fibrillation and reports occasional fatigue and palpitations. His resting heart rate is 96 bpm and irregular, and he takes a beta-blocker. During a six-minute walk test, he experiences mild shortness of breath but completes the test without difficulty. Which consideration is MOST important when developing this patient’s exercise program?
A) Monitor for a target heart rate based on age-predicted max heart rate
B) Use a perceived exertion scale to guide exercise intensity
C) Avoid aerobic exercise due to the risk of arrhythmias
D) Encourage high-intensity intervals to improve cardiovascular function
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