HESI LPN
HESI Fundamentals Study Guide
1. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.
2. A healthcare professional is preparing to perform denture care for a client. Which of the following actions should the professional plan to take?
- A. Pull down and out at the back of the upper denture to remove.
- B. Brush the dentures with a toothbrush and denture cleaner.
- C. Rinse the dentures with hot water after cleaning them.
- D. Place the dentures in a clean, dry storage container after cleaning them.
Correct answer: B
Rationale: The correct answer is to brush the dentures with a toothbrush and denture cleaner. This action ensures effective cleaning of the dentures. Dentures should be rinsed with cool or lukewarm water, not hot water, to prevent damage. Placing the dentures in a clean, dry storage container is not the immediate next step after cleaning; they should be kept moist to prevent warping.
3. During a peripheral vascular assessment, a healthcare professional places the bell of the stethoscope on a client's neck and hears an audible vascular sound associated with turbulent blood flow. This sound indicates which of the following?
- A. Narrowed arterial lumen
- B. Distended jugular veins
- C. Impaired ventricular contraction
- D. Asynchronous closure of the aortic and pulmonic valve
Correct answer: A
Rationale: The correct answer is A: Narrowed arterial lumen. Arterial bruits are abnormal sounds caused by turbulent blood flow through narrowed or occluded arteries. This turbulent flow creates a blowing sound, which is heard as an arterial bruit. Distended jugular veins (choice B) are typically associated with venous issues, not arterial abnormalities. Impaired ventricular contraction (choice C) and asynchronous closure of the aortic and pulmonic valve (choice D) are not directly related to the audible vascular sound described in the scenario.
4. A nurse in a surgical suite notes documentation on a client's medical record stating that he has a latex allergy. In preparation for the client's procedure, which of the following precautions should the nurse take?
- A. Ensure sterilization of non-disposable items with ethylene oxide
- B. Wrap monitoring cords with stockinette and secure them with non-latex tape
- C. Cleanse latex ports on IV tubing with chlorhexidine before administering medication
- D. Wear hypoallergenic latex gloves that are powder-free
Correct answer: B
Rationale: In this scenario, the nurse should take precautions to prevent latex exposure to the client due to his latex allergy. Wrapping monitoring cords with stockinette and securing them with non-latex tape helps to minimize the risk of latex contact with the client. Choice A is incorrect as sterilizing non-disposable items with ethylene oxide does not specifically address the avoidance of latex exposure. Choice C involves using latex ports on IV tubing, which can pose a risk of allergic reaction in a client with a latex allergy. Choice D suggests wearing latex gloves, even if hypoallergenic, which can still trigger a reaction in individuals with latex allergy. Therefore, the best option is to choose non-latex materials like stockinette and non-latex tape to prevent direct contact with latex.
5. The nurse is providing discharge teaching to a client who has been prescribed digoxin (Lanoxin). Which statement by the client indicates a need for further teaching?
- A. I should take my pulse before taking the medication.
- B. I will take my medication at the same time every day.
- C. I should avoid taking antacids at the same time as this medication.
- D. I should eat foods high in potassium while taking this medication.
Correct answer: D
Rationale: The correct answer is D. Eating foods high in potassium can lead to hyperkalemia when taken with digoxin, indicating a need for further teaching. Choices A, B, and C are all correct statements that demonstrate understanding of digoxin therapy. Taking the pulse, maintaining a consistent dosing schedule, and avoiding antacids to prevent interactions with digoxin are all appropriate client responses.
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