4 doctors weighed in:

What is the normal heart rate of a 9 month old baby?

4 doctors weighed in
Dr. Robert Vogt Lowell
Pediatrics - Cardiology
3 doctors agree

In brief: Depends

A good range for normal is 100-180 beats per minute but this can vary depending of activity; for example while sleeping the hr might dip into the 80's and while feeding or crying in might reach the low 200's.

In brief: Depends

A good range for normal is 100-180 beats per minute but this can vary depending of activity; for example while sleeping the hr might dip into the 80's and while feeding or crying in might reach the low 200's.
Dr. Robert Vogt Lowell
Dr. Robert Vogt Lowell
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