Which statement accurately defines tachycardia?

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Multiple Choice

Which statement accurately defines tachycardia?

Explanation:
Tachycardia means a faster-than-normal heart rate at rest. In adults, a resting heart rate above about 100 beats per minute is considered tachycardic. The statement that HR of 100 BPM or higher matches this clinical threshold, so it’s the best fit. The other options don’t align with how tachycardia is defined: a normal resting rate starts around 60 and up to 100, so 60 or higher can still be normal; 70–90 BPM is comfortably within normal; and tachycardia is inherently about heart rate, not something unrelated. Keep in mind that temporary rises in heart rate can occur with exercise, fever, or stress, but sustained resting rates above 100 bpm point toward tachycardia.

Tachycardia means a faster-than-normal heart rate at rest. In adults, a resting heart rate above about 100 beats per minute is considered tachycardic. The statement that HR of 100 BPM or higher matches this clinical threshold, so it’s the best fit. The other options don’t align with how tachycardia is defined: a normal resting rate starts around 60 and up to 100, so 60 or higher can still be normal; 70–90 BPM is comfortably within normal; and tachycardia is inherently about heart rate, not something unrelated. Keep in mind that temporary rises in heart rate can occur with exercise, fever, or stress, but sustained resting rates above 100 bpm point toward tachycardia.

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