ATI RN
Pathophysiology Final Exam
1. During a clinical assessment of a 68-year-old client who has suffered a head injury, a neurologist suspects that the client has sustained damage to her vagus nerve (CN X). Which assessment finding is most likely to lead the physician to this conclusion?
- A. The client has difficulty swallowing.
- B. The client has loss of gag reflex.
- C. The client has an inability to smell.
- D. The client has impaired eye movement.
Correct answer: B
Rationale: The correct answer is B. Damage to the vagus nerve can result in the loss of the gag reflex, which is a key indicator for the neurologist. Difficulty swallowing (Choice A) is more associated with issues related to the glossopharyngeal nerve (CN IX) and hypoglossal nerve (CN XII). An inability to smell (Choice C) is related to the olfactory nerve (CN I), and impaired eye movement (Choice D) is typically associated with damage to the oculomotor nerve (CN III), trochlear nerve (CN IV), or abducens nerve (CN VI), not the vagus nerve.
2. Which of the following nonpharmacologic treatments is most likely to be a useful and appropriate supplement to pharmacologic analgesia at this point?
- A. Cognitive-behavioral therapy
- B. Cold and heat application
- C. Therapeutic ultrasound
- D. Biofeedback
Correct answer: B
Rationale: The correct answer is B: Cold and heat application. Cold and heat application are commonly used nonpharmacologic methods for managing pain and can complement pharmacologic treatments. Cold packs can help reduce inflammation and numb localized areas, while heat application can increase blood flow and relax muscles. Cognitive-behavioral therapy (A) focuses on changing negative thought patterns and behaviors to manage pain but may not directly supplement pharmacologic analgesia. Therapeutic ultrasound (C) uses sound waves to generate heat within body tissues, which can be therapeutic, but it may not be as directly complementary to pharmacologic analgesia as cold and heat application. Biofeedback (D) involves using electronic devices to help individuals control physiological processes, but its direct role as a supplement to pharmacologic analgesia may be less pronounced compared to cold and heat application.
3. A female client with bone metastases secondary to lung cancer is admitted for palliative radiation treatment and pain control. The client is currently experiencing pain that she rates at 9 out of 10. Which of the following nonpharmacologic treatments is most likely to be a useful and appropriate supplement to pharmacologic analgesia at this point?
- A. Teaching the client guided imagery and meditation
- B. Initiating neurostimulation
- C. Heat therapy
- D. Relaxation and distraction
Correct answer: D
Rationale: In the scenario described, the client is experiencing high pain levels, rated at 9 out of 10. Relaxation and distraction techniques are effective nonpharmacologic interventions for managing pain. Teaching the client guided imagery and meditation (Choice A) can also be beneficial; however, in this acute situation of severe pain, relaxation and distraction techniques are more likely to provide immediate relief. Initiating neurostimulation (Choice B) and heat therapy (Choice C) may not be suitable for immediate pain relief in this scenario and are not as commonly used for managing high pain levels in palliative care settings.
4. A nurse is teaching a patient about the use of raloxifene (Evista) for the prevention of osteoporosis. What is the primary therapeutic action of this medication?
- A. It decreases the absorption of calcium from the intestines.
- B. It decreases bone resorption and increases bone density.
- C. It increases the excretion of calcium through the kidneys.
- D. It stimulates the formation of new bone.
Correct answer: B
Rationale: The correct answer is B. Raloxifene, a selective estrogen receptor modulator (SERM), works by decreasing bone resorption and increasing bone density. This action helps in preventing osteoporosis by maintaining bone strength. Choice A is incorrect as raloxifene does not affect the absorption of calcium from the intestines. Choice C is incorrect as raloxifene does not increase the excretion of calcium through the kidneys. Choice D is incorrect as raloxifene does not directly stimulate the formation of new bone; instead, it primarily works by reducing bone loss.
5. Which of the following is a characteristic of the human immunodeficiency virus (HIV), which causes AIDS?
- A. HIV only infects B cells
- B. HIV is a retrovirus
- C. Infection does not require a host cell receptor
- D. After infection, cell death is immediate
Correct answer: B
Rationale: The correct answer is B. HIV is a retrovirus that infects T cells and leads to the gradual destruction of the immune system. Choice A is incorrect because HIV infects T cells primarily, not just B cells. Choice C is incorrect because HIV infection requires host cell receptors for entry. Choice D is incorrect because cell death after HIV infection is not immediate; instead, the virus gradually weakens the immune system over time.
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