With a sinus bradycardia, most patients are not symptomatic until the heart rate falls below 40 bpm.

Name: With a sinus bradycardia, most patients are not symptomatic until the heart rate falls below 40 bpm.
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Most patients with sinus bradycardia are asymptomatic or have mild symptoms until the heart rate falls below 50 bpm. Severe symptoms such as syncope, dizziness, and confusion are typically associated with heart rates below 40 bpm.

With a Sinus Bradycardia, Most Patients Are Not Symptomatic Until