19医学英语Cardiac Arrest and Arrhythmias

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Cardiac arrest is an event in which the heart abruptly stops or develops a very abnormal arrhythmia that prevents it from pumping blood. Sudden cardiac death results if treatment is not provided within a few minutes.

The term arrhythmia  describes an abnormality, or the loss of the normal rhythm, of the heartbeat.

Bradycardia is an abnormally slow resting heart rate. This term is usually applied to rates less than 60 beats per minute.Bradycardia is the opposite of tachycardia.

Tachycardia is an abnormally rapid resting heart rate.This term is usually applied to rates greater than 100 beats per minute. Tachycardia is the opposite of bradycardia.

Palpitation is a pounding or racing heart with or without irregularity in rhythm. This is associated with certain heart disorders; however, it also occur as part of a panic attack.

词汇：

cardiac arrest 心脏骤停

arrhythmia 心律失常

bradycardia  心动过缓 brady- 缓慢的，迟缓  card 心 -ia表示一种疾病状态

tachycardia 心动过速  tachy- 快速的，加速   card 心 -ia表示一种疾病状态

palpitation 心悸

参考译文：

cardiac arrest心脏骤停是指心脏突然停止跳动或出现非常异常的心律失常，从造成而泵血功能丧失。如果不在几分钟内提供治疗，就会导致心脏突然死亡。
arrhythmia心律失常一词指的是异常或失去正常节律的心跳。
bradycardia心动过缓是一种异常缓慢的静息心率。这个词通常用于频率低于每分钟60次。心动过缓与心动过速相反。
tachycardia心动过速是一种异常快速的静息心率。这个词通常用于频率大于每分钟100次。心动过速与心动过缓相反。
palpitation心悸是一种伴或不伴规则节律的心跳加重和加快。这与某些心脏疾病有关；但它也可以是恐慌发作的一种表现。