Respiratory rate = 40 under 1 yr, 30 between 2 – 5, and 20 over 12

Systolic Blood pressure = 70 – 90 under 1 year, 80-100 between 2 and 5, 90 – 110 between 5 and 12, and 100-120 over 12. [Arch Dis Child. 2007 Apr;92(4):298-303.]

In other words, range of 20 @ every age, increasing by 10 in each group, with a Max of 100 @ 2-5, and a minimum of 100 @ 12+.

Insensible losses

300 ml/m2/d – else:

• > 1y –  12 ml/kg/24 h
• term neonate – 15 ml/kg/d
• preterm – 24 ml/kg/d

Increase if in hot climate or fever by around 50%.