Holliday-Segar (fluidos)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
manutenção pediátrica
About this calculator
The Holliday-Segar rehydration calculator is a useful tool for pediatric clinicians who need to calculate the amount of fluids required to maintain hydration in dehydrated patients.
The formula used is simple and direct: 100·(weight up to 10 kg) + 50·(10-20 kg) + 20·(weight above 20 kg). This formula is based on pediatric maintenance and is widely used in clinical practice.
It is essential to remember that this calculator is a supplementary tool and should be used in conjunction with the clinician's professional judgment. Additionally, it is crucial to consider the patient's age, weight, and clinical condition when calculating the amount of fluids required.
Rehydration is a critical process to prevent serious complications in dehydrated patients. Appreciate the importance of careful and monitored rehydration.
Frequently asked questions
What is the maximum weight considered by the formula?
The formula considers weights up to 20 kg. If the patient has a weight above 20 kg, the formula must be adjusted to the patient's actual weight.
Can I use this calculator for adult patients?
No, this calculator is specifically designed for pediatric patients. There are other formulas and calculators available for adult patients.
What should I consider when calculating the amount of fluids needed?
In addition to the formula, it is essential to consider the patient's age, weight, and clinical condition. Moreover, careful monitoring of rehydration and adjusting the amount of fluids as needed is crucial.