HESI LPN
HESI Fundamentals Test Bank
1. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
2. A healthcare professional is admitting a client who has tuberculosis. Which of the following types of transmission precautions should the healthcare professional plan to initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective environment
Correct answer: C
Rationale: Tuberculosis is transmitted through airborne particles, so airborne precautions are necessary to prevent the spread of the disease. Airborne precautions (Choice C) involve measures such as negative pressure rooms and N95 respirators to prevent the transmission of infectious agents that remain infectious over long distances when suspended in the air. Contact precautions (Choice A) are used for diseases that spread through direct contact with the patient or their environment. Droplet precautions (Choice B) are for diseases transmitted through respiratory droplets, typically over short distances. Protective environment (Choice D) is used for clients who are immunocompromised to protect them from environmental pathogens, not for diseases like tuberculosis that spread through the air.
3. A client with rheumatoid arthritis is prescribed methotrexate. What information should the LPN include when teaching the client about this medication?
- A. Avoid exposure to sunlight.
- B. Take the medication with food.
- C. Increase fluid intake while on this medication.
- D. Report any signs of infection to the healthcare provider immediately.
Correct answer: D
Rationale: The correct answer is D: 'Report any signs of infection to the healthcare provider immediately.' Methotrexate is an immunosuppressant medication commonly used to treat rheumatoid arthritis. It can lower the immune system's ability to fight infections, making it crucial for clients to promptly report any signs of infection to prevent serious complications. Choices A, B, and C are incorrect because avoiding sunlight, taking the medication with food, and increasing fluid intake are not specific to methotrexate therapy and are not primary concerns associated with this medication.
4. The nurse is caring for a client with a central venous catheter. What is the most important action for the nurse to take to prevent infection?
- A. Change the catheter dressing every 72 hours.
- B. Flush the catheter with heparin solution daily.
- C. Ensure the catheter is clamped when not in use.
- D. Maintain sterile technique when handling the catheter.
Correct answer: D
Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. Changing the catheter dressing every 72 hours, while important for overall catheter care, does not directly address infection prevention. Flushing the catheter with heparin solution daily is essential for maintaining patency but does not primarily prevent infections. Ensuring the catheter is clamped when not in use is important for preventing air embolism but is not the most critical action to prevent infection. The most effective way to prevent infections is by strictly adhering to sterile techniques during catheter handling, which minimizes the risk of introducing pathogens into the catheter site.
5. 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.
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