Is it normal for a 17-year-old boy to have a heart rate of 45?

Boys generally have a faster heart rate because they exercise more during their teenage years. However, some children will find out during the check-up that their heart rate is only 45, which is not a normal heart rate for a 17-year-old. It can be considered that their heart rate is low and they need to go to the hospital for a check-up.

What is the normal heart rate for children?

Normal heart rate range for children:

The normal values ​​of heart rate and respiration for children of different ages are as follows:

Newborn's breathing: 40-50 times/min Pulse: 120-140 times/min

Under 1 year old Respiration: 30-40 times/min Pulse: 110-130 times/min

2-3 years old Respiration: 25-30 times/min Pulse: 100-120 times/min

4-7 years old Respiration: 20-25 times/min Pulse: 80-100 times/min

8-12 years old Respiration: 18-20 times/min Pulse: 70-90 times/min

Changes in heart rate are also related to many factors such as eating, exercise, mood, sleep, and fever. A fast heart rate only makes sense when you are in a quiet state.

If the heart rate is also faster, and sometimes there is chest tightness and shortness of breath, "if it is not related to rest, mood, etc., and the heart rate is still fast after rest or in sleep, you should go to the hospital for an electrocardiogram and myocardial enzyme spectrum examination.

Children's heart rate is faster, which is mainly related to their vigorous metabolism and high sympathetic nerve excitability. Children aged 8-14 have a heart rate of 70-90 beats per minute. Children's pulse rate is unstable and is easily affected by various internal and external factors, such as eating, activity, crying, fever, etc. Therefore, children's pulse should be measured when they are at rest. If the pulse increases significantly and does not slow down during sleep, organic heart disease should be suspected. Go to the hospital for a comprehensive checkup

"Sinus arrhythmia" is a normal physiological phenomenon, not a disease. "Sinus arrhythmia" is most common in children and adolescents, but it is also not uncommon in adults.

We often pay attention to whether the children have eaten well, whether they are kept warm, whether they are sick, whether they have eaten well, etc., but the problem of heart rate is neglected. Do you know the normal range of children's heart rate? Take your child to check whether his or her heart rate is normal. This is related to the child's growth and health, and you can't wait a moment.