preterm 1000g HR, and BP 130-150 bpm 45/25 newborn HR and BP 110-150 bpm 60-75 / 27 6 months HR and BP 80-150 bpm 95/45 2 years HR and BP 85-125 bpm 95/50 4 years HR and BP 75-115 bpm 98/57 8 years HR and BP 60-110 bpm 112/60