which disorder is characterized by demyelination of neurons in the central nervous system
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HESI LPN

HESI PN Exit Exam 2023

1. Which disorder is characterized by demyelination of neurons in the central nervous system?

Correct answer: A

Rationale: Multiple sclerosis is the correct answer. It is an autoimmune disease that specifically targets and damages the myelin sheath surrounding neurons in the central nervous system. This demyelination disrupts the transmission of nerve signals and leads to a variety of neurological symptoms. Parkinson's disease (Choice B), Alzheimer's disease (Choice C), and Huntington's disease (Choice D) are neurodegenerative disorders that do not primarily involve demyelination of neurons in the CNS. Parkinson's disease is characterized by the loss of dopamine-producing neurons, Alzheimer's disease by the formation of plaques and tangles in the brain, and Huntington's disease by a genetic mutation affecting nerve cells.

2. The UAP reports to the PN that a client refused to bathe for the third consecutive day. Which action is best for the PN to take?

Correct answer: D

Rationale: The best action for the PN to take when a client refuses to bathe is to ask the client why the bath was refused. Understanding the client's reasons for refusing a bath is crucial as it helps to address any underlying issues, such as fear, discomfort, or physical limitations. By communicating directly with the client, the PN can provide appropriate care tailored to the client's needs. Choices A, B, and C do not directly address the root cause of the refusal and may not effectively resolve the issue.

3. Which task could the nurse safely delegate to the UAP?

Correct answer: A

Rationale: The correct answer is A because oral feeding of a stable child is a task that can be safely delegated to a UAP. This task does not require nursing assessment or clinical judgment. Choice B involves assessment, which requires the nurse's clinical judgment. Choice C involves recording client goals during staff rounds, which may require interpretation and understanding of the goals set. Choice D involves evaluating a client's pain following medication administration, which requires assessment and clinical judgment by a nurse.

4. A client is recovering from a craniotomy and has a ventriculostomy in place. The nurse notices the drainage from the ventriculostomy is suddenly increasing. What should the nurse do first?

Correct answer: C

Rationale: A sudden increase in drainage from a ventriculostomy could indicate a serious complication such as increased intracranial pressure or hemorrhage. The priority action in this situation is to notify the healthcare provider immediately to ensure prompt evaluation and intervention. Increasing the head of the bed may be beneficial in some situations but is not the first action to take. Clamping the ventriculostomy tube is inappropriate as it can lead to increased intracranial pressure. Measuring the client's head circumference is not the priority when there is a sudden increase in ventriculostomy drainage.

5. A female Native American client who is receiving chemotherapy places a native artifact, an Indian medicine wheel, in her hospital room. The HCP removes the medicine wheel and tells the client, 'This type of thing does not belong in the hospital.' Which intervention should the PN implement?

Correct answer: B

Rationale: Acting as the client's advocate is the most appropriate intervention in this situation. Removing a culturally significant artifact without considering the client's beliefs and emotional needs can be distressing. By advocating for the client, the PN can ensure that the client's cultural practices are respected, which is crucial for her emotional and spiritual well-being during treatment. Choice A is incorrect because while chemotherapy adherence is important, it is not the most immediate concern in this scenario. The client's cultural needs and well-being take precedence. Choice C is incorrect because consulting with a Native American healer might not be necessary at this point and could delay addressing the immediate issue of advocating for the client's rights. Choice D is incorrect because simply reporting the client's feelings of culture shock to the HCP does not actively address the situation or advocate for the client's rights and cultural needs.

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