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50 Dosage Calculation Practice Questions for HESI Nursing Exam

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 66 pages. Originally published on StudyMerit.

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66
Academic year
2025/2026
Language
English

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HESI DOSAGE CALCULATIONS QUIZ 150 QUESTIONS AND CORRECT SOVLED ANSWERS ( 2024/2025 ) GRADED A+ QUESTION 1 A patient with hypertension who weighs 72.4 kg is receiving an infusionof nitroprusside (Nipride) 50 mg in D5W 250 ml at 75 ml/hour. How many mcg/kg/minute is the patient receiving? (Enter numeric value only.If rounding is required, round to the nearest tenth.) - ANSWER- 3.5 Calculate the mg/hour infusing, 50 mg : 250 ml = X : 75 ml 250X = 3750 and X = 15 mg/hour Next, convert mg/hr to mcg/hour, 15 mg/hour = 1 mg / 1000 mcg = 15,000 mcg/hour, then divide by 60 min = 250 mcg/minute Lastly, 250 mcg/72.4 kg/min = 3.45 = 3.5 mcg/kg/minute QUESTION 2 A patient receives a prescription for an intravenous infusion 0.45% sodium chloride 500 ml to be infused over 6 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 wholenumber.) - ANSWER- 83 Downloaded by Clement Sam (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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Calculate using Volume/Time: 500 ml/6 hours = 83.3 ml/hour QUESTION 3 The healthcare provider prescribes a continuous intravenous infusion of dextrose 5% and 0.45% sodium chloride witth KCl 20 mEq/1000 ml to be delivered over 8 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.) - ANSWER- 125 Using the formula volume/time: 1000 ml/8 hours = 125 ml/hour QUESTION 4 A patient with cardiogenic shock weighs 220 lb and is receiving dopamine at the rate of 3 mcg/kg/minute. The solution strength availableis dopamine 400 mg in 250 ml of D5W. The nurse should set the infusion pump to deliver how many ml/hour? (Enter numeric value only.If rounding is required, round to the nearest tenth.) - ANSWER- 11.3 First, convert pounds to kg, 220 lb : X = 2.2 lb : 1 kg = 100 kg Next, calculate the dosage per minute, 3 mcg/kg/min x 100 kg = 300 mcg/min Convert mcg/min to mcg/hour, 300 mcg/min x 60 min=18,000 mcg/hourConvert mcg/hr to mg/hour, 18,000 mcg/hr = 18.0 mg/hour Calculate therate, 400 mg : 250 ml = 18 mg : X ml 400X = 4500 X = 11.25 = 11.3 ml. So, 18 mg/11.3 ml should be infused at 11.3 ml/hour. QUESTION 5 A patient who has a sinus infection is receiving a prescription for amoxicillin/clavulanate potassium (Augmentin) 500 mg PO q8 hours.The available form is 250 mg amoxicillin/125mg clavulanate tablets. How many tablets should the nurse administer for each dose? (Enter numeric value only.) - ANSWER- 2 Downloaded by Clement Sam (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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Using Desired/Available formula: 500 mg/250 mg x 1 tablet = 2 QUESTION 6 A child who is scheduled for a kidney transplant receives a prescription for basiliximab (Simulect) 20 mg IV 2 hours prior to surgery. The medication is available in a 20 mg vial that is reconstituted by adding 5 ml sterile water for injection, and administered in a 50 ml bag of normal saline over 30 minutes. The nurse should program the infusion pump to deliver how many ml/hour? (Enter the numeric value only.) - ANSWER-110 After reconstituting the medication vial, the nurse adds the 5 ml of medication to the 50 ml of sterile water to result in a 55 ml volume toinfuse in 30 minutes. Using the formula, Volume/Time = 55 ml / 0.5 hours = 110 ml/hour QUESTION 7 A patient who weighs 70 kg is receiving a dopamine solution of 800 mg/500 ml normal saline at 5 ml/hour. How many mcg/kg/minute is thepatient receiving? (Enter the numeric value only. If rounding is required,round to the nearest tenth.) - ANSWER- 1.9 To change ml/hour to mcg/kg/minute, use the formula: desired rate (5ml/hour) / volume available (500ml) x dose available (800mg) = 8 mg/hour. Next, convert milligrams/hour to mcg/kg/minute: mg (8) x 1000 / kg (70) / 60 minutes = 1.904 = 1.9 mcg/kg/minute. QUESTION 8 The nurse is preparing to administer Hepatitis B Vaccine, Recombinant (Energix-B) 5 mcg IM to a school-aged child. The vaccine is labeled, 10 Downloaded by Clement Sam (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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