HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
Filgrastim 5 mcg/kg/day subcutaneous is prescribed for a child with cancer who weighs 88 pounds. The medication is labeled 300 mcg/mL. How many mL should the nurse administer daily to this child?(Enter the numerical value only. If rounding required, round to the nearest tenth.)
Correct Answer: 0.7
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 dose of filgrastim in mcg by multiplying the weight in kg by the dosage in mcg/kg/day. Divide the dose in mcg by the concentration of filgrastim in mcg/mL. Round the result to the nearest tenth. Using these steps, we get: (weight in kg) = (88) / (2.2) = 40 kg. (dose in mcg) = (5) x (40) = 200 mcg. (volume in mL) = (200) / (300) = 0.667 mL. (rounded volume in mL) = 0.7 mL.
Therefore, the nurse should administer 0.7 mL of filgrastim to this child daily.
Question 2 of 5
Dobutamine hydrochloride 2 mcg/kg/min is prescribed for a client weighing 165 pounds. The solution is mixed with 50 mg of dobutamine in 1,000 mL of D5W. The nurse should set the infusion pump to deliver how many mL/hour? (Enter numeric value only.)
Correct Answer: 180
Rationale:
To find the answer, we can use the following steps: Convert the client's weight from pounds to kilograms by dividing by 2.2. Calculate the dosage of dobutamine in mg/hour by multiplying the weight in kg by the rate in mcg/kg/min and by 60. Divide the dosage of dobutamine in mg/hour by the concentration of dobutamine in the solution in mg/mL. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (165) / (2.2) = 75 kg. (dose in mg/hour) = (2) x (75) x (60) = 9000 mcg/hour. (dose in mg/hour) = (9000 x 10^-3) = 9 mg/hour. (volume in mL/hour) = (9) / (50 / 1000) = 180 mL/hour.
Therefore, the nurse should set the infusion pump to deliver 180 mL/hour of dobutamine hydrochloride in D5W.
Question 3 of 5
A patient 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:
To find the answer, we can use the following steps: Convert the dosage of oxytocin from milliunits/min to units/hour by multiplying by 60. Calculate the concentration of oxytocin in the IV bag by dividing the amount of oxytocin by the volume of solution. Divide the dosage of oxytocin by the concentration of oxytocin in the IV bag to get the volume to be delivered. Using these steps, we get: (dosage of oxytocin in units/hour) = (2) x (60) = 120 milliunits/hour. (concentration of oxytocin in IV bag) = (20) / (1000) = 0.02 units/mL. (volume to be delivered in mL/hour) = (120 x 10^-3) / (0.02) = 6 mL/hour.
Therefore, the nurse should program the infusion pump to deliver 6 mL/hour of oxytocin in lactated Ringer's to the patient.
Question 4 of 5
The nurse is initiating a 500 mL IV of normal saline at 60 mL/hour for a client with heart failure. How many hours should the IV infuse? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 8.3
Rationale: The correct answer is 8.3 hours.
To find the answer, we can use the following formula: (hours) = (mL of IV) / (mL/hour). Substituting the given values, we get: (hours) = (500) / (60). Simplifying, we get: (hours) = 8.333. (rounded hours) = 8.3.
Therefore, the IV should infuse for 8.3 hours.
Question 5 of 5
Filgrastim 5 mcg/kg/day subcutaneous is prescribed for a child with cancer who weighs 88 pounds. The medication is labeled 300 mcg/mL. How many mL should the nurse administer daily to this child?(Enter the numerical value only. If rounding required, round to the nearest tenth.)
Correct Answer: 0.7
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 dose of filgrastim in mcg by multiplying the weight in kg by the dosage in mcg/kg/day. Divide the dose in mcg by the concentration of filgrastim in mcg/mL. Round the result to the nearest tenth. Using these steps, we get: (weight in kg) = (88) / (2.2) = 40 kg. (dose in mcg) = (5) x (40) = 200 mcg. (volume in mL) = (200) / (300) = 0.667 mL. (rounded volume in mL) = 0.7 mL.
Therefore, the nurse should administer 0.7 mL of filgrastim to this child daily.