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

A child is to receive vancomycin 40 mg/kg intravenously one hour before a scheduled procedure. The child weighs 44 pounds. How many mg of the medication should the nurse administer? (Enter numeric value only.)

Correct Answer: 798

Rationale: Weight: 44 × 0.4536 = 19.9584 kg. Dose: 40 mg/kg × 19.9584 = 798.336 mg, rounded to 798.

Question 2 of 5

A client with a renal calculi receives a prescription for an intravenous infusion of 0.9% Sodium chloride Injection, USP 1,000 mL to be infused over 2.5 hours. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 400

Rationale: Infusion rate = 1000 mL / 2.5 hours = 400 mL/hour.

Question 3 of 5

The healthcare provider prescribes enoxaparin 1 mg/kg subcutaneously every 12 hours for a client who weighs 132 pounds. The medication is available in 60 mg/0.6 mL prefilled syringe. How many mL should the nurse administer per day? (Enter numerical value only.)

Correct Answer: 1.2

Rationale: Weight: 132 × 0.454 = 59.928 kg. Dose: 1 mg/kg × 59.928 = 59.928 mg. Volume per dose: (59.928 × 0.6) / 60 = 0.59928 mL. Daily volume: 0.59928 × 2 = 1.19856 mL, rounded to 1.20 mL.

Question 4 of 5

A child is to receive vancomycin 40 mg/kg intravenously one hour before a scheduled procedure. The child weighs 44 pounds. How many mg of the medication should the nurse administer? (Enter numeric value only.)

Correct Answer: 798

Rationale: Weight: 44 × 0.4536 = 19.9584 kg. Dose: 40 mg/kg × 19.9584 = 798.336 mg, rounded to 798.

Question 5 of 5

A client receives a prescription for oxytocin 2 milliunits/min intravenously (IV) for labor augmentation. The IV bag contains oxytocin 20 units in lactated Ringer's 1 liter. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)

Correct Answer: 6

Rationale: Concentration: 20 units = 20000 milliunits in 1000 mL = 20 milliunits/mL. Dose: 2 milliunits/min × 60 = 120 milliunits/hour. Volume = 120 / 20 = 6 mL/hour.

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