What is the Holliday-Segar maintenance rate per kilogram for the next 10 kg (11–20 kg)?

• A. 50 mL/kg/day
• B. 100 mL/kg/day
• C. 20 mL/kg/day
• D. 15 mL/kg/day

Answer: (A)

Holliday-Segar maintenance uses three weight-based tiers to estimate daily fluid needs: for the first 10 kg, 100 mL/kg/day; for the next 10 kg (11–20 kg), 50 mL/kg/day; and for each kg over 20 kg, 20 mL/kg/day. Therefore, the rate in the 11–20 kg range is 50 mL/kg/day. This means every kilogram in that bracket requires 50 mL of fluid per day. For example, a 15 kg child would have 10 kg × 100 = 1000 mL/day plus 5 kg × 50 = 250 mL/day, totaling 1250 mL/day.