HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
The healthcare provider prescribes ganciclovir 375 mg intravenously (IV) every 12 hours to infuse over 90 minutes. The pharmacy delivers ganciclovir 375 mg in a 150 mL IV bag. How many mL/hour should the nurse program the infusion pump?(Enter a whole number only.)
Correct Answer: 100
Rationale: The correct answer is 100 mL/hour.
To find the answer, we can use the following formula: (mL/hour) = (mL/minute) x 60. Substituting the given values, we get: (mL/hour) = (150 / 90) x 60. Simplifying, we get: (mL/hour) = 1.667 x 60. (mL/hour) = 100.
Therefore, the nurse should program the infusion pump to deliver 100 mL/hour of ganciclovir in IV bag.
Question 2 of 5
A patient who weighs 154 pounds receives a prescription for epoetin alfa 50 units/kg subcutaneously 3 times a week. The medication is available in 2000 units/mL vial. How many mL should the nurse administer with each dose?(Enter numerical value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 0.9
Rationale: The correct answer is 0.9 mL.
To find the answer, we can use the following steps: Convert the patient's weight from pounds to kilograms by dividing by 2.2. Multiply the weight in kilograms by the dosage in units/kg. Divide the dose in units by the concentration in units/mL. Round the result to the nearest tenth. Using these steps, we get: (weight in kg) = (154) / (2.2) = 70 kg. (dose in units) = (50) x (70) = 3500 units. (volume in mL) = (3500) / (2000) = 1.75 mL. (rounded volume in mL) = 1.8 mL. Note: The provided answer of 0.9 mL appears inconsistent with the calculation, which yields 1.8 mL. However, per the document, the correct answer is listed as 0.9 mL, possibly indicating a typo or alternative dosing assumption.
Question 3 of 5
The healthcare provider prescribes ganciclovir 375 mg intravenously (IV) every 12 hours to infuse over 90 minutes. The pharmacy delivers ganciclovir 375 mg in a 150 mL IV bag. How many mL/hour should the nurse program the infusion pump?(Enter a whole number only.)
Correct Answer: 100
Rationale: The correct answer is 100 mL/hour.
To find the answer, we can use the following formula: (mL/hour) = (mL/minute) x 60. Substituting the given values, we get: (mL/hour) = (150 / 90) x 60. Simplifying, we get: (mL/hour) = 1.667 x 60. (mL/hour) = 100.
Therefore, the nurse should program the infusion pump to deliver 100 mL/hour of ganciclovir in IV bag.
Question 4 of 5
A patient 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:
To find the answer, we can use the following formula: (mL/hour) = (mL/minute) x 60. Substituting the given values, we get: (mL/hour) = (1000 / 150) x 60. Simplifying, we get: (mL/hour) = 6.667 x 60. (mL/Hour) = 400.
Therefore, the nurse should program the infusion pump to deliver 400 mL/hour of 0.9% Sodium chloride Injection, USP to the patient.
Question 5 of 5
A child who weighs 66 pounds receives a prescription for amoxicillin 80 mg/kg/day by mouth in divided doses every 12 hours. The bottle is labeled, 'Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.' How many mL should the nurse administer with each dose?(Enter numerical value only.)
Correct Answer: 15
Rationale:
To find the answer, we can use the following steps: Convert the child's weight from pounds to kilograms by dividing by 2.2. Calculate the total daily dose of amoxicillin in mg by multiplying the weight in kg by the dosage in mg/kg/day. Divide the total daily dose of amoxicillin in mg by the number of doses per day to get the dose per administration. Divide the dose per administration in mg by the concentration of amoxicillin in mg/mL. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (66) / (2.2) = 30 kg. (total daily dose in mg) = (80) x (30) = 2400 mg. (dose per administration in mg) = (2400) / (2) = 1200 mg. (volume per administration in mL) = (1200) / (400 / 5) = 15 mL. (rounded volume per administration in mL) = 15 mL.
Therefore, the nurse should administer 15 mL of amoxicillin oral suspension with each dose.