ATI RN
WGU Pathophysiology Final Exam
1. A client has been admitted to the hospital with symptoms of Guillain-Barré syndrome. Which aspect of the client's condition would require priority monitoring?
- A. Monitoring oxygen saturation levels
- B. Monitoring for signs of respiratory compromise
- C. Monitoring for changes in consciousness
- D. Monitoring blood pressure closely
Correct answer: B
Rationale: In Guillain-Barré syndrome, respiratory muscle weakness can lead to respiratory compromise, making it crucial to prioritize monitoring for signs of respiratory distress. Monitoring oxygen saturation levels is important but is secondary to assessing for respiratory compromise in this condition. Changes in consciousness and monitoring blood pressure closely are not typically the priority in Guillain-Barré syndrome.
2. Which of the following is the most appropriate diagnostic method for identifying lung cancer in its early stages?
- A. CT scan
- B. MRI
- C. X-ray
- D. Biopsy
Correct answer: D
Rationale: A biopsy is the most appropriate method for diagnosing lung cancer in its early stages. A biopsy involves taking a small tissue sample from the lung for examination under a microscope. This method provides a definitive diagnosis by identifying cancerous cells. CT scans, MRIs, and X-rays can help detect abnormalities in the lungs, but a biopsy is necessary to confirm the presence of lung cancer. CT scans offer detailed images of the lung's structure, MRIs use magnetic fields for imaging soft tissues, and X-rays provide a basic view of the lungs, but none of these imaging techniques can definitively confirm the presence of cancer without a biopsy.
3. A client with a pneumothorax is receiving oxygen therapy. Which assessment finding would indicate that the treatment is effective?
- A. Increased respiratory rate
- B. Decreased oxygen saturation levels
- C. Improved breath sounds on the affected side
- D. Increased dyspnea and chest pain
Correct answer: C
Rationale: In a client with a pneumothorax receiving oxygen therapy, improved breath sounds on the affected side would indicate effective treatment. This finding suggests that the collapsed lung is re-expanding, allowing air to flow more freely in and out of the affected area. Choices A, B, and D are incorrect: Increased respiratory rate, decreased oxygen saturation levels, and increased dyspnea and chest pain are signs of ineffective treatment or worsening of the condition in a client with a pneumothorax.
4. A patient with osteoporosis is prescribed raloxifene (Evista). What is the primary therapeutic action of this medication?
- A. It decreases bone resorption and increases bone density.
- B. It stimulates the formation of new bone.
- C. It increases calcium absorption in the intestines.
- D. It increases the excretion of calcium through the kidneys.
Correct answer: A
Rationale: The correct answer is A. Raloxifene works by decreasing bone resorption and increasing bone density. This helps in preventing further bone loss and reducing the risk of fractures in patients with osteoporosis. Choice B is incorrect because raloxifene does not stimulate the formation of new bone, but rather helps to maintain existing bone mass. Choice C is incorrect as raloxifene does not directly increase calcium absorption in the intestines. Choice D is also incorrect as raloxifene does not increase the excretion of calcium through the kidneys.
5. A woman with severe visual and auditory deficits is able to identify individuals by running her fingers lightly over her face. Which source is most likely to provide the input that allows for the woman's unique ability?
- A. Special somatic afferent fibers
- B. General somatic afferents
- C. Special visceral afferent cells
- D. General visceral afferent neurons
Correct answer: C
Rationale: The correct answer is C, special visceral afferent cells. These cells are responsible for functions like taste and smell. In individuals with severe visual and auditory deficits, their other sensory abilities, such as touch, can be heightened. Special somatic afferent fibers (choice A) are involved in sensations like touch and vibration from the skin and muscles, but they are not specific to the face. General somatic afferents (choice B) transmit sensory information from the skin, muscles, and joints, but they are not specialized for the unique ability described. General visceral afferent neurons (choice D) are responsible for transmitting sensory information from internal organs, not relevant to the woman's ability to identify individuals through touch on her face.
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