Nursing Elites

1. A patient has developed a decubitus ulcer on the coccyx. What defense mechanism is most affected by this homeostatic change?

• A. The mucous membrane is affected.
• B. The respiratory tract is affected.
• C. The skin is affected.
• D. The gastrointestinal tract is affected.

Correct answer: C

Rationale: In this scenario, a decubitus ulcer on the coccyx indicates a breakdown of the skin's integrity due to prolonged pressure. The skin is the primary defense mechanism of the body against external pathogens. When the skin is compromised, it can lead to infections and other complications. The mucous membrane (Choice A) plays a role in protecting internal surfaces, not the skin. The respiratory tract (Choice B) is involved in breathing and not directly related to the skin's defense. The gastrointestinal tract (Choice D) is responsible for digestion and absorption of nutrients, not the primary defense mechanism against external threats like the skin.

2. During a flu shot clinic, one of the questions the student nurse asks relates to whether the client has a history of Guillain-Barré syndrome. The client asks, 'What is that?' How should the nursing student reply?

• A. A type of paralysis that affects movement on both sides of the body. It may even involve the respiratory muscles.
• B. Swelling of your arm where you got your flu shot and maybe your eyes and lips had some swelling as well.
• C. A degenerative disease where you have trouble walking without the help of a cane or walker.
• D. Influenza-like illness where you had fever and chills for 2 to 3 days after your last flu shot.

Correct answer: A

Rationale: The correct answer is A because Guillain-Barré syndrome is an acute immune-mediated polyneuropathy that can lead to paralysis affecting movement on both sides of the body, and in severe cases, involving the respiratory muscles. Choice B is incorrect as it describes local swelling, not the systemic effects of Guillain-Barré syndrome. Choice C is incorrect as it describes a degenerative disease affecting mobility, not an acute immune-mediated condition like Guillain-Barré syndrome. Choice D is incorrect as it describes flu-like symptoms following a flu shot, which is not the same as Guillain-Barré syndrome.

3. After studying about viruses, which information indicates the student has a good understanding of viruses? Viruses:

• A. Contain no RNA or DNA
• B. Are capable of independent reproduction
• C. Replicate their genetic material inside host cells
• D. Are killed easily by antimicrobials

Correct answer: C

Rationale: The correct answer is C. Viruses replicate their genetic material inside host cells, which is a fundamental aspect of their life cycle. Choice A is incorrect because viruses contain either RNA or DNA. Choice B is incorrect as viruses cannot reproduce independently and rely on host cells for replication. Choice D is incorrect as viruses are not easily killed by antimicrobials due to their unique structure and mechanisms of infection.

4. The nurse knows which phenomenon listed below is an accurate statement about axonal transport?

• A. Anterograde and retrograde axonal transport allow for the communication of nerve impulses between a neuron and the central nervous system (CNS).
• B. Materials can be transported to the nerve terminal by either fast or slow components.
• C. The unidirectional nature of the axonal transport system protects the CNS against potential pathogens.
• D. Axonal transport facilitates the movement of electrical impulses but precludes the transport of molecular materials.

Correct answer: B

Rationale: The correct answer is B. Axonal transport involves the movement of materials to the nerve terminal by either fast or slow components, which is essential for cell survival. Choice A is incorrect because while anterograde and retrograde axonal transport are involved in the movement of materials, they do not specifically relate to the communication of nerve impulses between a neuron and the CNS. Choice C is incorrect because the unidirectional nature of axonal transport does not primarily function to protect the CNS against pathogens. Choice D is incorrect as axonal transport is responsible for the movement of various materials, not just electrical impulses.

5. Which of the following is the most likely indication for the use of immunosuppressant agents?

• A. Intractable seizure disorders
• B. Increased intracranial pressure
• C. Organ transplantation
• D. HIV/AIDS with multiple drug resistance

Correct answer: C

Rationale: The correct answer is C: Organ transplantation. Immunosuppressant agents are commonly used in organ transplant recipients to prevent organ rejection by suppressing the immune system. Choices A, B, and D are incorrect. Intractable seizure disorders are often managed with antiepileptic drugs, increased intracranial pressure is managed through various means like surgery and medications, and HIV/AIDS with multiple drug resistance is typically treated with antiretroviral therapy, not immunosuppressant agents.

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