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Overview

In many respects, children aren’t “little adults.” This is true when it comes to vital signs. Vital signs, or vitals for short, are a measurement of:

  • blood pressure

  • heart rate (pulse)

  • respiratory rate

  • temperature

This important information can tell a medical provider a lot about a child’s overall health.

Normal values for vital signs exist for adults, but are often different for children, depending on their age. When you take your little one to the doctor’s office, you may notice that some vital signs are lower than an adult’s, while others are higher. Here’s what to expect when it comes to vital signs and your child.

 

Infant vital signs

Infants have a much higher heart and respiratory (breathing) rate than adults do. An infant’s muscles aren’t highly developed yet. This is true for the heart muscle and the muscles that assist breathing.

Think of the heart muscles like a rubber band. The further you stretch a rubber band, the harder and more forcefully it “snaps” back into place. If an infant’s heart cannot stretch very much due to immature muscle fibers, it has to pump at a faster rate to maintain blood flow through the body. As a result, an infant’s heart rate is often faster. It can also be irregular.

When an infant gets older, the heart muscle can stretch and contract more effectively. This means the heart doesn’t have to beat as fast to move blood through the body.

If an infant’s heart rate is lower than normal, it’s often cause for concern. Potential causes of slow heart rate, also known as bradycardia, in infants include:

  • not enough oxygen

  • low body temperature

  • medication effects

  • a congenital heart problem

While there can be variations, given a child’s overall condition, the average vital signs for an infant are:

  • heart rate (newborn to 1 month): 85 to 190 when awake

  • heart rate (1 month to 1 year): 90 to 180 when awake

  • respiratory rate: 30 to 60 times per minute

  • temperature: 98.6 degrees Fahrenheit

Forblood pressure:

  • neonate (96 hours old to 1 month): 67 to 84 systolic blood pressure (top number) over 31 to 45 diastolic (bottom number)

  • infant (1 to 12 months): 72 to 104 systolic over 37 to 56 diastolic

 

Toddler vital signs

After a child turns 1, their vital signs progress more toward adult values. From age 1 to 2, they should be:

  • heart rate: 98 to 140 beats per minute

  • respiratory rate: 22 to 37 breaths per minute

  • blood pressure: systolic 86 to 106, diastolic 42 to 63

  • temperature: 98.6 degrees Fahrenheit

Preschool vital signs

When a child is 3 to 5 years old, their average vital signs are:

  • heart rate: 80 to 120 beats per minute

  • respiratory rate: 20 to 28 breaths per minutes

  • blood pressure: systolic 89 to 112, diastolic 46 to 72

  • temperature: 98.6 degrees Fahrenheit

School-age (6 to 11 years old)

The average vital signs of a child who is 6 to 11 years old are:

  • heart rate: 75 to 118 beats per minute

  • respiratory rate: 18 to 25 breaths per minute

  • blood pressure: systolic 97 to 120, diastolic 57 to 80

  • temperature: 98.6 degrees Fahrenheit

Adolescents (12 years old and up)

Adolescent vital signs are essentially the same as those of an adult. By this time, heart and breathing muscles have developed to near-adult levels:

  • heart rate: 60 to 100 beats per minute

  • respiratory rate: 12 to 20 breaths per minutes

  • blood pressure: systolic 110 to 131, diastolic 64 to 83

  • temperature: 98.6 degrees Fahrenheit

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