Also, these individuals may have increased blood pressure, irregular breathing, and bradycardia.

此外，患者可能出现血压升高，呼吸节律不规则，以及心动过缓。

A heart rate slower than 60 beats per minute is termed bradycardia.

心率低于60次/分钟的称为心动过缓。

The opposite of bradycardia is tachycardia.

心动过缓的反面是心动过速。

Sinus bradycardia and sinus tachycardia may be normal or clinical depending on the underlying cause.

窦性心动过缓和窦性心动过速可能是正常现象或临床病变，具体取决于根本原因。

For example, sinus bradycardia is considered normal during sleep and sinus tachycardia may be normal during physical exercises.

例如，睡眠期间窦性心动过缓被认为是正常的，体育锻炼期间窦性心动过速可能是正常的。

Yet, interestingly, a heart rate slower than 60 beats per minute has a term applied to it, which is bradycardia.

然而，注意，心率低于60次/分钟的术语是心律过缓。

Given the dangerous nature of acute hyperkalemia, it must be suspected in any patient having new bradycardia or conduction block, especially in those with renal problems.

鉴于急性高钾血症具有危险性，对于任何有新的心动过缓或传导阻滞患者，特别是有肾脏问题的患者，必须怀疑高钾血症。

The most common variations of sinus rhythm include: - Sinus bradycardia: when the SA node fires less than 60 times per minute resulting in a slower heart rate of less than 60 beats per minute.

心率为60-100次/分钟。窦性心律最常见的变体包括：-窦性心动过缓：当SA结放电少于60次/分钟，导致心率低于60次/分钟。