What causes the respiratory rate of newborns?

The breathing rate of a newborn baby is very fast. Careful parents will find that the baby's breathing is always unstable after sleeping, basking in the sun, or when feeding. This phenomenon is very normal because the high breathing rate is caused by inhalation of amniotic fluid or incomplete development of cardiopulmonary function. However, some children in life have too fast breathing rate or crying, which should be taken seriously. So what is the reason for the high breathing rate of newborns?

breathe

Children have vigorous physiological metabolism, and their oxygen demand calculated based on body surface area is close to that of adults. Children can generally only meet the body's needs by increasing the number of breaths. The younger they are, the higher their breathing rate. A normal newborn breathes 40 to 44 times per minute; for children under 1 year old, it is 30 times; for children between 1 and 3 years old, it is about 24 times per minute. To observe the number of breathing times, it must be done in a quiet or sleeping state to be accurate.

Heart rate

Heart rate: Children have a faster heart rate, mainly because their metabolism is vigorous and their body tissues need more blood supply, while the amount of blood pumped by the heart each time remains relatively unchanged. The need can only be met by increasing the number of beats. Newborns: 120-140 times/minute; under 1 year old: 110-130 times/minute; 2-3 years old: 100-120 times/minute; 4-7 years old: 80-100 times/minute; 8-14 years old: 70-90 times/minute. The younger you are, the faster your heart rate and the faster your blood flows.

What is the reason for the high respiratory rate in newborns? First of all, the child's heart rate is faster because the child's metabolism is vigorous, the blood supply is rapid, and the cardiopulmonary function is not fully developed. A fast breathing rate is normal. As long as the child is not abnormal, has no pale face, or cries, there is no need to give the child corresponding treatment.