Nokea
The nurse plans to administer a bolus dose of IV Heparin based on the client's weight. The prescribed bolus dose is 100 units/kg. The client weighs 198 pounds. How many units of Heparin should the nurse administer? (Enter numeric value only.)
Correct Answer: 9000
Rationale: Weight: 198 pounds / 2.2 = 90 kg. Dose: 100 units/kg × 90 = 9000 units.
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Penicillin G procaine 240,000 units Intramuscularly is prescribed for a 4-year-old child who has a streptococcal respiratory Infection. The medication vial is labeled 1,200,000 units/2 mL. How many ml. should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 0.4
Rationale: Concentration: 1,200,000 units / 2 mL = 600,000 units/mL. Volume = 240,000 / 600,000 = 0.4 mL.
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.
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.
The healthcare provider prescribes metoclopramide 7.5 mg/mL IM every 3 hours PRN vomiting for a client who is receiving chemotherapy. The nurse prepares an injection using a 2 ml. prefilled syringe cartridge labeled, 'metoclopramide 5 mg/mL.' How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 1.5
Rationale: Volume = 7.5 mg / 5 mg/mL = 1.5 mL.
A client is brought to the emergency center for fluid replacement after running a marathon, and the healthcare provider prescribes a 500 mL bolus of 0.9% normal saline to be administered over 4 hours. The Infusion set delivers 10 gtt/mL, so the nurse should regulate the Infusion to deliver how many gtt/minute? (Enter numerical value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 21
Rationale: Infusion rate: 500 mL / 4 hours = 125 mL/hour. Flow rate: (125 × 10) / 60 = 20.833 gtt/min, rounded to 21.