Pediatric Maintenance Fluid Calculator by MDCalc

Holliday-Segar Formula:

\[ \text{Fluid} = \begin{cases} 100 \times \text{Weight} & \text{if Weight} \leq 10\text{kg} \\ 1000 + 50 \times (\text{Weight}-10) & \text{if } 10\text{kg} < \text{Weight} \leq 20\text{kg} \\ 1500 + 20 \times (\text{Weight}-20) & \text{if Weight} > 20\text{kg} \end{cases} \]

Daily Fluid Requirement:

Hourly Infusion Rate:

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1. What is the Pediatric Maintenance Fluid Calculator?

Definition: This calculator determines the appropriate maintenance intravenous fluid rates for pediatric patients using the Holliday-Segar method.

Purpose: It helps healthcare providers calculate safe fluid administration rates for children based on their weight.

2. How Does the Calculator Work?

The calculator uses the Holliday-Segar formula:

Explanation:

100 ml/kg/day for first 10 kg of body weight
50 ml/kg/day for next 10 kg (11-20 kg)
20 ml/kg/day for remaining weight (>20 kg)
Hourly rate = Daily requirement ÷ 24

3. Importance of Proper Fluid Calculation

Details: Accurate fluid calculation prevents both dehydration and fluid overload, which is particularly critical in pediatric patients.

4. Using the Calculator

Tips: Enter the patient's weight in kilograms. The calculator will display both daily requirements and hourly infusion rates.

5. Frequently Asked Questions (FAQ)

Q1: When should maintenance fluids be adjusted?
A: Adjust for fever, dehydration, renal/cardiac conditions, or specific clinical situations.

Q2: What type of fluid is typically used?
A: Isotonic solutions like 0.9% NaCl or balanced crystalloids are commonly used.

Q3: Does this include replacement fluids?
A: No, this calculates maintenance only. Additional fluids may be needed for deficits.

Q4: How accurate is the Holliday-Segar method?
A: It's widely accepted but may need adjustment for specific clinical conditions.

Q5: What about neonates?
A: Different calculations are typically used for neonates (first 28 days of life).