The normal pulse rate for children between the ages of six and 12 is 75 to 105 beats per minute. The average pulse rate is 90 beats per minute.
Typically, you don’t need to worry too much if your children’s pulse rate is faster or slower than normal once in a while. It usually harmless and can recover on its own. But if it lasts for quite a long time or occurs frequently, it can be dangerous and even fatal.