医学文章阅读——Heart rhythm
2025-07-15 09:49:38 etogether.net 网络 次
The normal resting heart rate is 65-75 beats per minute. In athletes it may be as low as 40 beats per minute. In extreme athletic activity, the heart rate can go as high as 200/min. The heart rhythm may be regular or irregular. In an irregular rhythm (arrhythmia), there may be early beats which interrupt the regular rhythm (premature beats); or the thythm may vary with respiration; or it may be completely irregular, as in fibrillation. When patients are aware of irregularity,they describe the symptom as palpitations.
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