# Fluid Maintenance Requirement Questions

Given the weight of a child or infant, calculate the necessary amount of
fluid per day. Different hospitals may have different policies, but for
learning how to perform these pediatric dosage calculations,
the following commonly used table of fluid requirements may be used.

Weight Range |
Required Daily Fluid |

0-10 kg |
100 mL per kg |

10-20 kg |
1,000 mL + 50 mL per each kg above 10 kg |

20-70 kg |
1,500 mL + 20 mL per each kg above 20 kg |

Over 70 kg |
2,500 mL (adult requirement) |

Example: An infant weighs

4 kg. What is the required
amount of fluid per day in mL?

- 4 kg x 100 mL/kg = 400 mL

Example: An infant weighs

30.8 lb. What is the required
IV flow rate in mL/hr to maintain proper fluid levels?

Convert 30.8 lb to kg.
- lb → kg ( ÷ by 2.2 )
- 30.8 lb ÷ 2.2 = 14 kg

10-20 kg |
1,000 mL + 50 mL per each kg above 10kg |

- 14 kg - 10 kg = 4 kg (There are 4 kg over 10 kg).
- 1,000 mL + (50 mL/kg x 4 kg) = 1,200 mL/day

There are 24 hours in one day.