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Worked Example

Tom weighs 20kg.
Q1. Calculate the maintenance fluids, i.e. how many mL/hr?
Q2. How much fluid will Tom receive after 10 hours?

DHSS NI requirements:

  • 100mL/kg for first 10kg body weight, plus
  • 50mL/kg for next 10kg, plus
  • 20mL/kg for each kg thereafter up to max of 70kg

This provides the total 24 hour calculation.