ATI RN
Final Exam Pathophysiology
1. A 34-year-old woman has presented to the clinic for the first time, and the nurse learns that she has been taking Depo Provera for the past 13 years. This aspect of the woman's medical history should prompt what assessment?
- A. Cardiac stress testing
- B. Renal ultrasound
- C. Bone density testing
- D. Evaluation of triglyceride levels
Correct answer: C
Rationale: The correct answer is bone density testing (Choice C). Long-term use of Depo Provera, a hormonal contraceptive, is associated with decreased bone mineral density. Assessing bone density is crucial to monitor for potential osteoporosis. Cardiac stress testing (Choice A) is not indicated based on the medication history provided. Renal ultrasound (Choice B) and evaluation of triglyceride levels (Choice D) are not directly related to the use of Depo Provera.
2. In Guillain-Barre syndrome, what pathophysiologic process underlies the deficits that accompany the degeneration of myelin in the peripheral nervous system (PNS)?
- A. The destruction of myelin results in a reduction in Schwann cell production in the client's PNS.
- B. The lack of myelin surrounding nerve cells compromises the axonal transport system.
- C. Without remyelination, the axon will eventually die.
- D. A deficit of myelin makes the client more susceptible to infection by potential pathogens.
Correct answer: C
Rationale: In Guillain-Barre syndrome, the destruction of myelin leads to axonal damage. If remyelination does not occur, the axon will eventually degenerate and die, impacting nerve function. Choice A is incorrect because the destruction of myelin does not affect Schwann cell production. Choice B is incorrect as the lack of myelin directly affects the conduction of nerve impulses, not the axonal transport system. Choice D is incorrect as a deficit of myelin does not predispose the client to infections by potential pathogens.
3. A client diagnosed with Bell's palsy is receiving discharge teaching from a nurse. Which statement made by the client indicates an understanding of the condition?
- A. I should avoid moving my face excessively to prevent worsening of symptoms.
- B. This condition usually resolves on its own within a few weeks or months.
- C. Bell's palsy is caused by a stroke and requires immediate medical treatment.
- D. I will need to take antiviral medication for the rest of my life to manage this condition.
Correct answer: B
Rationale: The correct answer is B. Bell's palsy typically resolves on its own within a few weeks to months. Choice A is incorrect because gentle facial exercises are often encouraged to prevent muscle weakness. Choice C is incorrect as Bell's palsy is not caused by a stroke but by inflammation of the facial nerve. Choice D is incorrect as antiviral medication is usually given early in the diagnosis but not required for lifelong management.
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. A patient with a history of cardiovascular disease is prescribed hormone replacement therapy (HRT). What should the nurse emphasize regarding the long-term risks associated with HRT?
- A. HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke.
- B. HRT may decrease the risk of osteoporosis.
- C. HRT may improve mood and energy levels.
- D. HRT may increase the risk of breast cancer.
Correct answer: A
Rationale: HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke, particularly in patients with a history of cardiovascular disease.
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