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. An adult female client with type 1 diabetes mellitus is receiving NPH insulin 35 units in the morning. Which finding should the nurse document as evidence that the amount of insulin is inadequate?
- A. States that her feet are constantly cold and numb
- B. A wound on the ankle that starts to drain and becomes painful
- C. Consecutive evening serum glucose greater than 260 mg/dL
- D. Reports nausea in the morning but still able to eat breakfast
Correct answer: C
Rationale: The correct answer is C. Consistently high evening glucose levels indicate that the current insulin dosage is inadequate to maintain proper glucose control. Choice A is incorrect because cold and numb feet are more indicative of peripheral vascular disease rather than inadequate insulin dosage. Choice B describes a wound that may be related to poor circulation or neuropathy but not necessarily inadequate insulin dosage. Choice D suggests gastrointestinal issues that are not directly related to insulin dosage adequacy.
3. The PN is reviewing instructions for the use of pilocarpine eye drops with a client who has glaucoma. The client replies that the drops are used to anesthetize the eye if eye pain is experienced. What action should the PN implement?
- A. Document in the chart that the client understands the correct action and use of eye drops
- B. Reassure the client that the drops will not be needed often since eye pain in glaucoma is not common
- C. Reteach the client about the action of the eye drops to decrease pressure in the eyes
- D. Explain to the client that the eye drops do not anesthetize the eyes but reduce pressure
Correct answer: C
Rationale: Pilocarpine eye drops are used to reduce intraocular pressure in glaucoma, not to anesthetize the eye. The PN should reteach the client about the purpose of the medication to ensure proper use and understanding, which is crucial for effective treatment. Choice A is incorrect because just documenting understanding without addressing the client's misconception is not enough. Choice B is incorrect as it provides incorrect information about the purpose of the eye drops and may lead to further misunderstanding. Choice D is incorrect as it provides inaccurate information stating that the drops provide pain relief, which is not their primary purpose.
4. Which type of isolation is required for a patient with measles?
- A. Contact isolation
- B. Airborne isolation
- C. Droplet isolation
- D. Reverse isolation
Correct answer: B
Rationale: The correct answer is B: Airborne isolation. Measles is highly contagious and can be transmitted through airborne particles, so airborne isolation is necessary to prevent its spread. Choice A, Contact isolation, is incorrect because measles is not primarily transmitted through direct contact. Choice C, Droplet isolation, is also incorrect as measles is not transmitted through large droplets but through smaller airborne particles. Choice D, Reverse isolation, is used to protect a patient from outside infections, not to prevent the spread of a contagious disease like measles.
5. The PN is caring for a laboring client whose last sterile vaginal examination revealed the cervix was 3 cm dilated, 50% effaced, and the presenting part was at 0 station. An hour later, the client tells the PN that she wants to go to the bathroom. Which action is most important for the PN to implement?
- A. Review the fetal heart rate and contraction pattern
- B. Check the perineum for an increase in bloody show
- C. Request a nurse to check the client's cervical dilation
- D. Palpate the client's bladder for distention
Correct answer: C
Rationale: The sudden urge to use the bathroom may indicate that labor is progressing quickly. Checking the cervical dilation will help determine if the client is in the transition phase of labor and if it is appropriate to allow her to get up. Reviewing the fetal heart rate and contraction pattern (Choice A) is important but not the most immediate action in this scenario. Checking the perineum for an increase in bloody show (Choice B) is relevant but not as crucial as assessing cervical dilation. Palpating the client's bladder for distention (Choice D) is not the priority when the client wants to go to the bathroom during labor.
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