Holliday-Segar Calculation — FRCA Final MCQ
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Correct answer: E — 46 mL/h
Holliday-Segar: 4 mL/kg/h first 10 kg + 2 mL/kg/h next 10 kg + 1 mL/kg/h thereafter. For 13 kg: (4×10)+(2×3) = 40+6 = 46 mL/h. Use isotonic balanced crystalloid. Hypotonic solutions (0.18% NaCl) no longer recommended — hyponatraemia risk.
Reference: NICE – 2020 – NG29 IV fluid therapy in children