It depends.
Children often have second to second variations in their heartbeats due to respiratory affects on the centers that control heart rate. Sinus arrythmia is an example of this normal physiologic "irregular heart rate".
There certainly are many much more rare and dangerous causes of an irregular heart rate but in an asymptomatic 8 year old these are extremely unlikely. I would contact your pediatrician and discuss with him/her exactly what you mean by "irregular heart rate".
The normal heart rate of a 3 year old is 80-130 beats per minute.
Roughly 100 beats per minute, but it can range between 80-120.
The normal, resting heart rate for a 9 year old boy is between 70 and 110 beats per minute. If they are a very active child, they may be under 70 beats per minute consistently.
70-110 beats/ min
120 BPM
120
The normal resting heart rate for children from 1 to 2 years old is 80 to 130 beats per minute.
An average normal heart rate for a 5 month old boy is 80 beats per minute. Pulse rates for a child sleeping can be 10% lower.
about 110-120 I think. Check with a pediatrician.
the normal heart rate is 70-110 but can differ from person to person
A rest and with a normal heart the HR ( Heart rate) is between 60 - 100 BPM
normal heart rate for an 86 year old woman
30
30
28
0-3 months: Heart rate=100-150bpm Respiratory Rate=35-55 Blood Pressure=65-85/45-55
Normal conditions: 30-45bpm
The normal, healthy heart rate of a 23 month old child is between 80 beats per minute up to 130 beats per minute. If 188 is their resting heart rate, you should seek medical attention.