Answer by
emhaskey (685)
The heart rate should always be regular. A frequently irregular heart rate should be mentioned to your pediatrician. For premature infants the normal rate ranges from 120-170 beats per minute. At 0-3 months the norm ranges from 100-150. At 3-6 months, the norm is 90-120. At 6 months to one year, the norm is 80-120.