HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
The healthcare provider prescribes heparin 1,400 units/hour intravenously (IV). The IV bag contains heparin 20,000 units in 250 mL dextrose 5% in water. How many mL/hour should the nurse program the infusion pump to deliver?(Enter numeric value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 17
Rationale: The correct answer is 17 mL/hour.
To find the answer, we can use the following formula: (mL/hour) = (units/hour) x (mL per unit). Substituting the given values, we get: (mL/hour) = (1,400) x (250 / 20,000). Simplifying, we get: (mL/hour) = (1,400) x (0.0125). (mL/hour) = 17.5. (rounded mL/hour) = 17.
Therefore, the nurse should program the infusion pump to deliver 17 mL/hour of heparin in dextrose 5% in water.
Question 2 of 5
A client receives a prescription for 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 3 of 5
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:
To find the answer, we can use the following formula: (mL to be administered) = (units prescribed) / (units per mL). Substituting the given values, we get: (mL to be administered) = (240,000) / (1,200,000 / 2). Simplifying, we get: (mL to be administered) = (240,000 x 2) / (1,200,000). (mL to be administered) = 480,000 / 1,200,000. (mL to be administered) = 0.4.
Therefore, the nurse should administer 0.4 mL of penicillin G procaine to the child.
Question 4 of 5
A client with a gram-positive bacterial skin infection is receiving daptomycin 500 mg IV every 24 hours. The pharmacy delivers a secondary infusion of 0.9% Sodium Chloride with daptomycin 500 mg/100 mL to be infused in 30 minutes. How many mL/hour should the nurse program the infusion pump?(Enter the numerical value only.)
Correct Answer: 200
Rationale: The correct answer is 200 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) = (100 / 30) x 60. Simplifying, we get: (mL/hour) = 3.333 x 60. (mL/hour) = 200.
Therefore, the nurse should program the infusion pump to deliver 200 mL/hour of daptomycin in 0.9% Sodium Chloride.
Question 5 of 5
A patient who weighs 91 kg receives a prescription for a continuous infusion of dopamine at 3 mcg/kg/min. The solution is labeled, “Dopamine 400 mg in 5% Dextrose injection 250 mL.†How many mL/hour should the nurse program the infusion pump to deliver?(Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 10.2
Rationale:
To determine the infusion rate in mL/hour for the dopamine solution: Calculate the total dose per minute: 3 mcg/kg/min × 91 kg = 273 mcg/min. Convert mcg/min to mcg/hour: 273 mcg/min × 60 min/hour = 16,380 mcg/hour. Convert mcg to mg: 16,380 mcg ÷ 1,000 = 16.38 mg/hour. Determine the concentration of the solution: 400 mg ÷ 250 mL = 1.6 mg/mL. Calculate the mL/hour required: 16.38 mg/hour ÷ 1.6 mg/mL = 10.2375 mL/hour. Rounded to the nearest tenth: 10.2 mL/hour.