Maintenance IV fluids (4-2-1 rule)
Hourly maintenance fluid rate by the Holliday–Segar method.
Inputs
0 of 1Actual (total) body weight
When to use
- Estimating maintenance fluids.
Pearls and pitfalls
- AAP 2018 recommends isotonic fluids for most hospitalized children.
- Many cap adults at about 100 to 120 mL/h.
Why use
Shows each weight band.
- where
- W1
- First 10 kg
- W2
- Next 10 kg
- W3
- Each kg above 20