Bradycardia is defined as heart rate below what threshold?

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Multiple Choice

Bradycardia is defined as heart rate below what threshold?

Explanation:
Bradycardia means a heart rate that is slower than normal. For adults, normal resting heart rate is about 60–100 beats per minute, so bradycardia is defined as below 60 bpm. The other options describe alternative patterns: heart rates above 100 bpm are tachycardia, 60–100 bpm is the normal range, and 40–60 bpm lies within bradycardia but isn’t the defining threshold. Clinical significance also depends on symptoms and perfusion, not just the number.

Bradycardia means a heart rate that is slower than normal. For adults, normal resting heart rate is about 60–100 beats per minute, so bradycardia is defined as below 60 bpm. The other options describe alternative patterns: heart rates above 100 bpm are tachycardia, 60–100 bpm is the normal range, and 40–60 bpm lies within bradycardia but isn’t the defining threshold. Clinical significance also depends on symptoms and perfusion, not just the number.

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