HESI LPN
PN Exit Exam 2023 Quizlet
1. Which type of cell is responsible for producing antibodies in the immune system?
- A. B lymphocytes
- B. T lymphocytes
- C. Macrophages
- D. Neutrophils
Correct answer: A
Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.
2. A client who is receiving chemotherapy has developed stomatitis. Which instruction should the nurse provide the UAP who is assisting with the care of this client?
- A. Keep the room environment free of unpleasant odors
- B. Gather supplies for protective environmental precautions
- C. Assist the client with feeding at meal times
- D. Provide gentle and meticulous mouth care
Correct answer: D
Rationale: Providing gentle and meticulous mouth care is critical for a client with stomatitis as it helps prevent further irritation and infection of the mucous membranes. Keeping the room environment free of unpleasant odors (Choice A) is important for the client's comfort but not directly related to managing stomatitis. Gathering supplies for protective environmental precautions (Choice B) is not relevant to addressing stomatitis. Assisting the client with feeding at meal times (Choice C) is important for overall care but does not specifically target the care needed for stomatitis.
3. A client is post-operative day one following a colostomy surgery. The nurse notices the stoma is dark purple. What is the most appropriate action?
- A. Document the finding and continue to monitor.
- B. Apply warm compresses to the stoma.
- C. Notify the healthcare provider immediately.
- D. Encourage the client to ambulate.
Correct answer: C
Rationale: A dark purple stoma may indicate compromised blood flow to the stoma, which is an emergency. Immediate notification of the healthcare provider is necessary to prevent further complications. Simply documenting and monitoring the finding (Choice A) could lead to delays in addressing a potentially serious issue. Applying warm compresses to the stoma (Choice B) may not address the underlying cause of the dark purple color. Encouraging the client to ambulate (Choice D) is not the priority when a compromised blood flow to the stoma is suspected.
4. The nurse enters a male client's room to administer routine morning medications, and the client is on the phone. Which action is best for the nurse to take?
- A. Ask another nurse to return with the medication when the client has hung up the phone
- B. Wait for the client to excuse himself from the telephone conversation, and observe the client taking the medication
- C. Return the medication to the client's drawer on the cart and document that the client refused the dose
- D. Leave the medication with the client and let him take it when he finishes the conversation
Correct answer: B
Rationale: The best action for the nurse to take in this situation is to wait for the client to excuse himself from the telephone conversation and then observe the client taking the medication. This approach ensures that the client takes the medication as prescribed, promoting compliance and safety. Choice A is not ideal as it involves unnecessary delegation and may lead to confusion. Choice C is incorrect because assuming refusal without direct communication can compromise patient care. Choice D is not recommended as leaving the medication with the client unsupervised may result in non-compliance or potential errors.
5. What is the primary reason for applying sequential compression devices (SCDs) to a patient’s legs postoperatively?
- A. To prevent deep vein thrombosis (DVT)
- B. To promote wound healing
- C. To reduce postoperative pain
- D. To maintain body temperature
Correct answer: A
Rationale: The correct answer is A: To prevent deep vein thrombosis (DVT). Sequential compression devices (SCDs) are used postoperatively to prevent DVT by promoting blood circulation in the legs. This helps reduce the risk of blood clots forming in the deep veins of the legs. Choice B, to promote wound healing, is incorrect as SCDs are primarily used for circulatory purposes rather than wound healing. Choice C, to reduce postoperative pain, is incorrect as the primary purpose of SCDs is not pain management but rather prevention of DVT. Choice D, to maintain body temperature, is incorrect as SCDs are not designed for regulating body temperature but for preventing circulatory issues.
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