Pediatric maintenance fluid practice problems

Pediatric (a DoseRight Pro category in the app) · 8 problems

Work each problem on paper first, rounding as the question says. Then open the answer to check it and see every step.

For study and exam practice, not for patient care. The orders in these problems are written for practice. In the clinic, follow the prescriber's order, your facility's protocols, and your pharmacy.

1. Problem 1

   The nurse is caring for a 9-year-old client who weighs 34 kg. The unit uses the Holliday-Segar method for daily maintenance fluid, with 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg. How many mL/day does the child need? Record your answer using a whole number.

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   Answer: 1,780 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 14 kg: 14 × 20 = 280 mL.
   4. Total = 1,780 mL/day.
   5. 1,780 mL/day is exact, so no rounding is needed.

2. Problem 2

   Using 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg, calculate the daily maintenance fluid for a 12-year-old who weighs 32 kg. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 1,740 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 12 kg: 12 × 20 = 240 mL.
   4. Total = 1,740 mL/day.
   5. 1,740 mL/day is exact, so no rounding is needed.

3. Problem 3

   Order: maintenance fluid for a 9-year-old who weighs 30 kg, using 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg. Available: the daily maintenance fluid is calculated from the weight alone, with no other supply line. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 1,700 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 10 kg: 10 × 20 = 200 mL.
   4. Total = 1,700 mL/day.
   5. 1,700 mL/day is exact, so no rounding is needed.

4. Problem 4

   The nurse is caring for a 12-year-old client who weighs 54 kg. The unit's maintenance fluid protocol uses 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 2,180 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 34 kg: 34 × 20 = 680 mL.
   4. Total = 2,180 mL/day.
   5. 2,180 mL/day is exact, so no rounding is needed.

5. Problem 5

   Order: daily maintenance fluid using 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg for a 14-year-old client who weighs 38 kg. Available: the nurse uses the weight in this order line to determine the daily total. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 1,860 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 18 kg: 18 × 20 = 360 mL.
   4. Total = 1,860 mL/day.
   5. 1,860 mL/day is exact, so no rounding is needed.

6. Problem 6

   Using 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg, calculate the daily maintenance fluid for a 7-year-old who weighs 28 kg. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 1,660 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 8 kg: 8 × 20 = 160 mL.
   4. Total = 1,660 mL/day.
   5. 1,660 mL/day is exact, so no rounding is needed.

7. Problem 7

   Order: maintenance fluid for a 10-year-old who weighs 45 kg, using 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg. Available: the daily maintenance fluid volume calculated from this rule for the child. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 2,000 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 25 kg: 25 × 20 = 500 mL.
   4. Total = 2,000 mL/day.
   5. 2,000 mL/day is exact, so no rounding is needed.

8. Problem 8

   The nurse is caring for a 14-year-old client who weighs 72 kg. The nurse uses the following maintenance fluid rule: 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for each kg above 20 kg. How many mL/day does the child need? Record your answer using a whole number.

   Show answer and steps

   Answer: 2,540 mL/day

   1. First 10 kg: 10 × 100 = 1,000 mL.
   2. Next 10 kg: 10 × 50 = 500 mL.
   3. Remaining 52 kg: 52 × 20 = 1,040 mL.
   4. Total = 2,540 mL/day.
   5. 2,540 mL/day is exact, so no rounding is needed.

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