HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
The healthcare provider prescribes amoxicillin 500 mg every 8 hours for a child who weighs 88 pounds. The recommended maximum safe dose is 50 mg/kg/24 hour. The available suspension is labeled, 'Amoxicillin Suspension 250 mg/5 mL.' Based on this child's weight, how many mL should the nurse administer?(Enter numerical value only. If rounding is required, round to the whole number.)
Correct Answer: 10
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 volume of amoxicillin suspension in mL by dividing the dose in mg by the concentration in mg/mL. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (88) / (2.2) = 40 kg. (volume in mL) = (500) / (250 / 5) = 10 mL. (rounded volume in mL) = 10 mL.
Therefore, the nurse should administer 10 mL of amoxicillin suspension to the child.
Question 2 of 5
The healthcare provider prescribes a hydration infusion of normal saline to run over 3 hours at 30 mL/kg for a client who is dehydrated and weighs 70 kg. The nurse should program the infusion pump to deliver how many mL/hour?(Enter numeric value only.)
Correct Answer: 700
Rationale:
To find the answer, we can use the following steps: Calculate the total volume of normal saline in mL by multiplying the weight in kg by the dosage in mL/kg. Divide the total volume of normal saline in mL by the number of hours to get the rate in mL/hour. Round the result to the nearest whole number. Using these steps, we get: (total volume in mL) = (30) x (70) = 2100 mL. (rate in mL/hour) = (2100) / (3) = 700 mL/hour. (rounded rate in mL/hour) = 700 mL/hour.
Therefore, the nurse should program the infusion pump to deliver 700 mL/hour of normal saline.
Question 3 of 5
A client receives a prescription for amoxicillin 2 g/clavulanate 125 mg by mouth every 12 hours for 10 days. The medication is available in 1000 mg/62.5 mg extended release tablets. How many tablets should the nurse administer?(Enter numerical value only.)
Correct Answer: 2
Rationale:
To find the answer, we can use the following steps: Calculate the number of tablets needed to provide the prescribed dose of amoxicillin by dividing the dose in mg by the amount of amoxicillin in one tablet. Calculate the number of tablets needed to provide the prescribed dose of clavulanate by dividing the dose in mg by the amount of clavulanate in one tablet. Compare the two numbers and choose the larger one as the number of tablets to be administered. Using these steps, we get: (number of tablets for amoxicillin) = (2000) / (1000) = 2. (number of tablets for clavulanate) = (125) / (62.5) = 2. (number of tablets to be administered) = max(2, 2) = 2.
Therefore, the nurse should administer 2 tablets of amoxicillin/clavulanate to the client.
Question 4 of 5
The nurse is initiating a prescription for Dextrose 2.5% in 0.45% Sodium Chloride (D2.5W, 0.45% NS) at 45 mL/hour for a child with dehydration. The nurse attaches a volume-control administration set with a microdrip chamber to the bag of solution. How many microdrops/minute should the nurse regulate the infusion? (Enter the numerical value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 45
Rationale:
To find the answer, we can use the following formula: (microdrops/minute) = (mL/hour) x (microdrops/mL) / 60. Substituting the given values, we get: (microdrops/minute) = (45) x (60) / 60. Simplifying, we get: (microdrops/minute) = 45.
Therefore, the nurse should regulate the infusion to deliver 45 microdrops/minute of Dextrose 2.5% in 0.45% Sodium Chloride.
Question 5 of 5
A 4-year-old is admitted with croup and receives a prescription for a single dose of dexamethasone 0.6 mg/kg IM. The child weighs 35 pounds. How many mg should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 10
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. Multiply the weight in kilograms by the dosage in mg/kg. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (35) / (2.2) = 15.909. (dose in mg) = (0.6) x (15.909) = 9.545. (rounded dose in mg) = 10.
Therefore, the nurse should administer 10 mg of dexamethasone to the child.