which type of cell is responsible for producing antibodies in the immune system
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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. Which of the following is NOT a second-line agent used for the treatment of Tuberculosis?

Correct answer: C

Rationale: The correct answer is C, Rifabutin. Rifabutin is actually a first-line drug used in the treatment of tuberculosis. Choices A, B, and D (Amikacin, Moxifloxacin, and Cycloserine) are considered second-line agents for tuberculosis treatment. These drugs are used when the first-line medications are either ineffective or cannot be tolerated by the patient.

3. 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.

4. The PN is caring for a client with schizophrenia who continues to repeat the last words heard. Which nursing problem should the PN document in the medical record?

Correct answer: D

Rationale: The correct answer is D: Disturbed thought processes. Echolalia, the repetition of heard words, is associated with disturbed thought processes, which are commonly seen in schizophrenia. Altered thought processes (Choice A) is a generic term and does not specifically address the behavior of repeating words. Impaired social interaction (Choice B) is not the primary concern when a client repeats the last words heard. Risk for self-directed violence (Choice C) is not directly related to the behavior of repeating words but focuses on the potential harm the client may cause to themselves.

5. After spinal fusion surgery, a client reports numbness and tingling in the legs. What should the nurse do first?

Correct answer: A

Rationale: After spinal fusion surgery, numbness and tingling in the legs may indicate nerve compression or damage. The priority action for the nurse is to assess the client’s neurovascular status in the lower extremities. This assessment will help determine the cause and severity of the symptoms, guiding further interventions. Repositioning the client may be necessary for comfort, but assessing neurovascular status is the initial step. Administering pain medication should only follow the assessment to address any discomfort. Notifying the healthcare provider immediately is not the first action unless there are emergent signs requiring urgent intervention.

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