1. What is the Holliday-Segar Method?

The Holliday-Segar method calculates maintenance intravenous (IV) fluid requirements for children based on body weight. It provides a standardized approach to ensure proper hydration while accounting for metabolic needs.

2. How Does the Calculator Work?

The calculator uses the Holliday-Segar formula:

Where:

• First 10 kg: 100 mL/kg/day
• Next 10 kg (11-20 kg): 50 mL/kg/day
• Remaining weight (>20 kg): 20 mL/kg/day

Explanation: The method accounts for decreasing fluid requirements per kilogram as body weight increases, reflecting the metabolic rate changes with growth.

3. Importance of IV Fluid Calculation

Details: Accurate fluid calculation is essential for maintaining proper hydration, electrolyte balance, and preventing complications of both dehydration and fluid overload in pediatric patients.

4. Using the Calculator

Tips: Enter the patient's weight in kilograms. The calculator will automatically compute the daily maintenance IV fluid requirement.

5. Frequently Asked Questions (FAQ)

Q1: When is the Holliday-Segar method used?
A: It's primarily used for calculating maintenance IV fluids in pediatric patients who are NPO or require intravenous hydration.

Q2: Are there adjustments for specific conditions?
A: Yes, fluid requirements may need adjustment in cases of fever, increased losses (diarrhea, vomiting), renal impairment, or cardiac conditions.

Q3: What about electrolyte replacement?
A: Maintenance fluids typically contain dextrose and electrolytes (usually 1/4 NS with 20 mEq/L KCl), but composition should be adjusted based on individual patient needs.

Q4: Is this method appropriate for all ages?
A: While primarily designed for children, the method can be adapted for adults, though other formulas may be more commonly used in adult populations.

Q5: How often should fluid calculations be reassessed?
A: Fluid requirements should be reassessed daily or whenever there are significant changes in clinical status, weight, or fluid losses.