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FLUIDS IN OLDER CHILDREN

The maintenance fluid requirements of older children are also based on ml/kg/day.

1-10 kg	100	ml/kg/d
11-20 kg	1000 ml +	50 ml/kg above 10 kg/d
21-30 kg	1500 ml +	20 ml/kg above 20 kg/d
> 30 kg	1700 ml +	10 ml/kg above 30 kg/d

another way to remember this:

first 10kg: 100ml/kg/d = 4ml/kg/hr

next 10kg: 2ml/kg/hr in addition to the rate for the first 10kg (40ml/hr)

next 10kg:1ml/kg/hr in addition to the rate for the first 20kg (60ml/hr)

Electrolyte requirements are essentially the same:

Sodium 3 mEq/kg/day

Potassium 2 mEq/kg/day

Based on these electrolyte requirements and the fluid volume constraints, the appropriate maintenance for children

<10kg : D5/0.25NS + 10mEq KCl/L

>10kg: D5/0.45NS + 20mEqKCl/L

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