Paediatrics

Paediatric Maintenance Fluid

Daily maintenance fluid in children by weight (Holliday-Segar).

Education and reference only. Not a substitute for clinical judgement, local policy or product labelling. Always verify before clinical use. Values are calculated in your browser and never stored.

When to use

Use to estimate 24-hour maintenance fluid requirement in a child by weight (the 100/50/20 rule).

Why use

It is the standard estimate of paediatric maintenance fluid.

Critical actions

A starting estimate only. Adjust for clinical status, deficits and ongoing losses, and follow local paediatric fluid guidance. Use isotonic fluids and check electrolytes per policy. Always double-check paediatric prescriptions.

Evidence & references

  1. Holliday MA, Segar WE. The maintenance need for water in parenteral fluid therapy. Pediatrics. 1957.

About the creator

Holliday & Segar

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