RN Hesi Med Surg Dosage Calculations | Nurselytic

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RN Hesi Med Surg Dosage Calculations Questions

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Question 1 of 5

The healthcare provider prescribes 1 liter of lactate Ringers to infuse in 8 hours. The IV administration set delivers 15 gtt/mL. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 125

Rationale: Infusion rate = 1000 mL / 8 hours = 125 mL/hour.

Question 2 of 5

An adult client receives a prescription for diphenhydramine 15 mL by mouth every 12 hours PRN for pruritus. The bottle is labeled, diphenhydramine 12.5 mg/5 mL. What is the total daily dose in mg that the client receives? (Enter numerical value only.)

Correct Answer: 75

Rationale:
To find the total daily dose, calculate the mg per dose: 12.5 mg/5 mL means 15 mL contains (12.5 × 15) / 5 = 37.5 mg. The prescription allows two doses daily (every 12 hours PRN), so 37.5 × 2 = 75 mg/day.

Question 3 of 5

The healthcare provider prescribes ceftazidime 30 mg/kg/day for an infant weighing 3,500 grams. What dose should the nurse administer daily to this infant? (Enter numeric value only.)

Correct Answer: 105

Rationale: Weight: 3500 g = 3.5 kg. Dose: 30 mg/kg/day × 3.5 = 105 mg/day.

Question 4 of 5

The nurse is caring for a client with an oral temperature of 100.6° F. What temperature in Celsius should the nurse document in the medical record? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

Correct Answer: 38.1

Rationale: C = (F - 32) × 5/9 = (100.6 - 32) × 5/9 = 38.111, rounded to 38.1°C.

Question 5 of 5

The nurse plans to provide the next shift with the IV fluid balance for a client who had a 440 mL secondary infusion that was started 2 hours ago at a rate of 85 ml/hour via an infusion pump. What is the remaining volume to be infused? (Enter numeric value only.)

Correct Answer: 270

Rationale: Infused volume = 85 mL/hour × 2 hours = 170 mL. Remaining volume = 440 - 170 = 270 mL.

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