Fast | 合法醫療器材資訊網

2020年2月14日—Forexample,aheartrateof130to150beatsperminuteisnormalforanewborninfant,butitwouldbeconsideredfastforaschoolagechild.

​​​​​​​​​​​By: Orhan Kilinc, MD, FAAP, and Christopher S. Snyder, MD, FAAP

The heart is one of the most active muscles in the body, beating some 50 million times in a childs first year of life. Its normal for a childs heartbeat to speed up or slows down as they play, sleep and grow.

But what if your childs heartbeat seems faster or slower than it should be, or has an unusual pattern? In this article, the American Academy of Pediatrics describes normal heart rate fluctuations in kids, and what might be cause for concern.

​​Ordinarily, special “pacemaker" cells in the heart send electrical impulses from upper to lower chambers (atria and ventricles), which take turns squeezing and relaxing to pump blood throughout the body. ​There are many factors that can influence this rhythm. These include physical activity[1], stress or exciteme...