which type of cell is responsible for producing antibodies in the immune system
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Nursing Elites

HESI LPN

PN Exit Exam 2023 Quizlet

1. Which type of cell is responsible for producing antibodies in the immune system?

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 post-lobectomy is placed on mechanical ventilation. The nurse notices the client is fighting the ventilator. What should the nurse do first?

Correct answer: C

Rationale: The correct first action for the nurse to take when a client is fighting the ventilator is to check the ventilator settings and alarms. This step is crucial to ensure that the ventilator is functioning correctly and providing the necessary support to the client. Increasing sedation (Choice A) should only be considered after confirming that the ventilator settings are appropriate. While manually ventilating the client (Choice B) may be required in some cases, it is not the initial action to take. Suctioning the client's airway (Choice D) is not the priority in this situation, where the primary concern is addressing the client's struggle with the ventilator.

3. There has been a serious explosion at a local factory, and many of the injured are arriving at the hospital. Which of the following patients should a nurse attend to first?

Correct answer: D

Rationale: The correct answer is D. The 19-year-old man with a respiration rate exceeding 30 breaths per minute is showing signs of respiratory distress, indicating a potentially life-threatening condition that requires immediate attention. Patients with respiratory distress should be prioritized as it is a critical condition. Choices A, B, and C describe patients with injuries that are less immediately life-threatening or who are more stable based on the provided information, so they can be attended to after the patient with respiratory distress. Therefore, the nurse should attend to the 19-year-old man first to address his respiratory distress and ensure his condition does not deteriorate further.

4. A client is recovering from a below-the-knee amputation (BKA). The client reports phantom limb pain. What should the nurse include in the client’s care plan to manage this type of pain?

Correct answer: B

Rationale: Phantom limb pain is a type of pain that feels like it's coming from a body part that's no longer there. It is essential to understand that phantom limb pain is real and should be managed appropriately. Administering prescribed analgesics is the most effective way to address this discomfort. Applying heat, elevating the residual limb, and performing range-of-motion exercises are not effective in managing phantom limb pain since the pain originates from the brain expecting sensory input from the missing limb, rather than being related to physical factors that heat, elevation, or exercises can address.

5. After adding feeding solution to a client's tube feeding system as seen in the picture, what action should the PN take next?

Correct answer: B

Rationale: After adding feeding solution, obtaining a piston syringe and irrigation set is necessary to flush the feeding tube and ensure patency before starting the feeding. This helps prevent blockages and ensures proper delivery of the nutritional solution. Option A is incorrect because removing air from the solution bag is not the immediate next step after adding the feeding solution. Option C is incorrect as recording the solution added as fluid intake is important but not the immediate next step. Option D is incorrect as calculating the rate of flow of the solution is not the next step after adding the feeding solution.

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