HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
The healthcare provider prescribes magnesium hydroxide 4800 mg by mouth at bedtime for a client with constipation. The bottle is labeled 'Magnesium hydroxide Saline Laxative, USP 400 mg per 5 mL.' How many ounces should the nurse instruct the client to take with each dose? (Enter numerical value only.)
Correct Answer: 2
Rationale: The correct answer is 2 ounces.
To find the answer, we can use the following steps: Calculate the volume of magnesium hydroxide in mL by dividing the dose in mg by the concentration in mg/mL. Convert the volume in mL to ounces by multiplying by 0.0338. Round the result to the nearest whole number. Using these steps, we get: (volume in mL) = (4800) / (400) = 12 mL. (volume in ounces) = (12) x (0.0338) = 0.4056 ounces. (rounded volume in ounces) = 2 ounces.
Therefore, the nurse should instruct the client to take 2 ounces of magnesium hydroxide Saline Laxative, USP with each dose.
Question 2 of 5
A client receives a prescription for loratadine suspension 10 mg by mouth once a day. The bottle is labeled 'Loratadine for Oral Suspension, USP 5 mg per 5 mL.' How many teaspoons should the nurse instruct the client to take? (Enter numerical value only.)
Correct Answer: 2
Rationale:
To find the answer, we can use the following steps: Calculate the volume of loratadine suspension in mL by dividing the dose in mg by the concentration in mg/mL. Convert the volume in mL to teaspoons by multiplying by 0.2. Round the result to the nearest whole number. Using these steps, we get: (volume in mL) = (10) / (5 / 5) = 10 mL. (volume in teaspoons) = (10) x (0.2) = 2 teaspoons. (rounded volume in teaspoons) = 2 teaspoons.
Therefore, the nurse should instruct the client to take 2 teaspoons of loratadine suspension.
Question 3 of 5
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: The correct answer is 1.5 mL.
To find the answer, we can use the following formula: (mL to be administered) = (mg prescribed) / (mg per mL). Substituting the given values, we get: (mL to be administered) = (7.5) / (5). Simplifying, we get: (mL to be administered) = 1.5.
Therefore, the nurse should administer 1.5 mL of metoclopramide from the prefilled syringe cartridge to the client.
Question 4 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.
Question 5 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.