HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
The healthcare provider prescribes enoxaparin 1 mg/kg subcutaneously every 12 hours for a client who weighs 132 pounds. The medication is available in 60 mg/0.6 mL prefilled syringe. How many mL should the nurse administer per day?(Enter numerical value only.)
Correct Answer: 1.2
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 dose of enoxaparin in mg per administration by multiplying the weight in kg by the dosage in mg/kg. Divide the dose in mg per administration by the concentration of enoxaparin in the prefilled syringe in mg/mL. Multiply the volume in mL per administration by the number of administrations per day. Round the result to the nearest tenth. Using these steps, we get: (weight in kg) = (132) / (2.2) = 60 kg. (dose in mg per administration) = (1) x (60) = 60 mg. (volume in mL per administration) = (60) / (60 / 0.6) = 0.6 mL. (volume in mL per day) = (0.6) x (2) = 1.2 mL. (rounded volume in mL per day) = 1.2 mL.
Therefore, the nurse should administer 1.2 mL of enoxaparin per day.
Question 2 of 5
A client who weighs 176 pounds receives a prescription for lorazepam 0.05 mg/kg intramuscularly 2 hours before a scheduled procedure. The medication is available in 4 mg/mL vial. How many mL should the nurse administer?(Enter numeric value only.)
Correct Answer: 1
Rationale: The correct answer is 1 mL.
To find the answer, we can use the following steps: Convert the client's weight from pounds to kilograms by dividing by 2.2. Multiply the weight in kilograms by the dosage in mg/kg. Divide 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) = (176) / (2.2) = 80 kg. (dose in mg) = (0.05) x (80) = 4 mg. (volume in mL) = (4) / (4) = 1 mL. (rounded volume in mL) = 1 mL.
Therefore, the nurse should administer 1 mL of lorazepam from the vial to the client.
Question 3 of 5
A client returns from the PACU with a bag of IV fluids that has 630 mL remaining in the 1,000 mL bag. The prescription reads, 'Continue the present IV over the next 7 hours.' The IV administration set delivers 10 gtt/mL. The nurse should regulate the infusion to deliver how many drops/minute to accomplish the new prescription? (Enter numeric value only.)
Correct Answer: 15
Rationale:
To find the answer, we can use the following steps: Calculate the infusion rate in mL/hour by dividing the volume of IV fluids by the time of infusion. Calculate the infusion rate in mL/minute by dividing the infusion rate in mL/hour by 60. Multiply the infusion rate in mL/minute by the drop factor in gtt/mL to get the infusion rate in gtt/minute. Round the result to the nearest whole number. Using these steps, we get: (infusion rate in mL/hour) = (630) / (7) = 90 mL/hour. (infusion rate in mL/minute) = (90) / (60) = 1.5 mL/minute. (infusion rate in gtt/minute) = (1.5) x (10) = 15 gtt/minute. (rounded infusion rate in gtt/minute) = 15.
Therefore, the nurse should regulate the infusion to deliver 15 gtt/minute of IV fluids to the client.
Question 4 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 5 of 5
The healthcare provider prescribed 2 liters of 5% Dextrose in water (D5W) to infuse in 24 hours. The IV administration set delivers 15 gtt/mL. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 83
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) = (2000 / 24) x 60. Simplifying, we get: (mL/hour) = 83.333. (rounded mL/hour) = 83.
Therefore, the nurse should program the infusion pump to deliver 83 mL/hour of D5W.