ATI RN
ATI Pathophysiology Exam 2
1. Although stress exposure initiates integrated responses by multiple systems, which system first activates the most important changes?
- A. Pulmonary
- B. Gastrointestinal
- C. Neuroendocrine
- D. Cardiovascular
Correct answer: C
Rationale: The correct answer is C, the Neuroendocrine system. When the body is exposed to stress, the neuroendocrine system plays a crucial role in initiating the body's response. This system, particularly through the hypothalamic-pituitary-adrenal axis, triggers a cascade of physiological responses to stress. Choices A, B, and D are incorrect because while other systems like the cardiovascular and gastrointestinal systems also respond to stress, the neuroendocrine system is primarily responsible for the initial and significant changes in the body's stress response.
2. Which of the following describes the type of incontinence due to an increase in intraabdominal pressure such as coughing, sneezing, and laughing?
- A. Overflow
- B. Stress
- C. Mixed
- D. Functional
Correct answer: B
Rationale: The correct answer is B: Stress. Stress incontinence occurs when there is an increase in intraabdominal pressure, for example, during activities like coughing, sneezing, or laughing, leading to urine leakage. This type of incontinence is specifically triggered by physical movements or activities that put pressure on the bladder. Choices A, C, and D are incorrect because overflow incontinence is characterized by the bladder not emptying properly, mixed incontinence is a combination of stress and urge incontinence, and functional incontinence is typically due to physical or cognitive impairments.
3. A nurse is caring for a client with lung cancer who is experiencing dyspnea. Which intervention is most appropriate?
- A. Administer a cough suppressant to reduce discomfort.
- B. Encourage the client to lie flat to ease breathing.
- C. Provide supplemental oxygen therapy.
- D. Encourage deep breathing and coughing exercises.
Correct answer: C
Rationale: The most appropriate intervention for a client with lung cancer experiencing dyspnea is to provide supplemental oxygen therapy. This intervention helps improve oxygenation and alleviate breathing difficulties. Administering a cough suppressant (Choice A) may not address the underlying cause of dyspnea and can potentially depress the respiratory drive. Encouraging the client to lie flat (Choice B) can worsen dyspnea by reducing lung expansion. Encouraging deep breathing and coughing exercises (Choice D) may be beneficial in some situations, but when a client is experiencing dyspnea due to lung cancer, supplemental oxygen therapy is the priority to improve oxygen levels and alleviate breathing difficulty.
4. A patient with a history of breast cancer is prescribed tamoxifen (Nolvadex). What critical information should the nurse include in the patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. Tamoxifen may cause weight gain, so patients should monitor their diet.
- C. Tamoxifen may decrease the risk of osteoporosis, so patients should ensure adequate calcium intake.
- D. Tamoxifen may cause hot flashes and other menopausal symptoms.
Correct answer: A
Rationale: Tamoxifen increases the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots and the importance of seeking immediate medical attention if they occur.
5. A patient is being treated for a severe fungal infection with amphotericin B. What is the expected length of treatment for this patient?
- A. 1 to 2 weeks
- B. 3 to 6 weeks
- C. 4 to 12 weeks
- D. 15 to 18 weeks
Correct answer: C
Rationale: The correct answer is C: '4 to 12 weeks.' Amphotericin B treatment duration for severe fungal infections typically ranges from 4 to 12 weeks. This extended period is necessary to ensure complete eradication of the fungal infection and prevent relapse. Choices A, B, and D provide durations that are either too short or too long for treating severe fungal infections effectively, making them incorrect.
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