Pediatrics proctored exam
Calculation
A child weighs 32.7 kg and requires maintenance IV fluids. What infusion rate in milliliters per hour (mL/hr) should the nurse set on the IV pump to meet the child's 24-hour fluid requirement? Round your answer to the nearest tenth and enter only digits (not units). —
mL/hr
Explanation & Rationale
Step 1 is: Calculate the total daily fluid requirement using the Holliday-Segar formula. The child weighs 32.7 kg. For the first 10 kg: 10 kg× 100 mL/kg = 1000 mL. For the next 10 kg (from 10.1 kg to 20 kg): 10 kg× 50 mL/kg = 500 mL. For the remaining weight: 32.7 kg - 20 kg = 12.7 kg. Remaining weight fluid: 12.7 kg× 20 mL/kg = 254 mL. Total daily fluid requirement: 1000 mL + 500 mL + 254 mL = 1754 mL. Step 2 is: Calculate the infusion rate in milliliters per hour (mL/hr). Rate = Total fluid÷Total hours. Rate = 1754 mL÷ 24 hr = 73.0833… mL/hr. Step 3 is: Round the answer to the nearest tenth. 73.1 mL/hr. The infusion rate is 73.1 mL/hr.
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