Age	Pulse rate beats/mn	Blood pressure systolic mmHG	Respiratory rate breaths/min	Blood volume ml/kg
<1 year	120–160	70–90	30–40	85–90
1– 5 years	100–120	80–90	25–30	80
6 – 12 years	80–100	90–110	20–25	80
>12 years	60–100	100–120	15–20	70