ATI RN
ATI Pathophysiology Exam 3
1. Which of the following is a clinical manifestation of hyperthyroidism?
- A. Tachycardia
- B. Constipation
- C. Weight gain
- D. Fatigue
Correct answer: A
Rationale: The correct answer is A: Tachycardia. Tachycardia, which is an increased heart rate, is a classic clinical manifestation of hyperthyroidism. In hyperthyroidism, there is an excess production of thyroid hormones, leading to an increased metabolic rate. This increased metabolism can cause symptoms such as a rapid heart rate. Choices B, C, and D are incorrect because constipation, weight gain, and fatigue are more commonly associated with hypothyroidism, where there is a deficiency of thyroid hormones leading to a slower metabolic rate.
2. In osteoporosis, what is the expected therapeutic action of raloxifene (Evista)?
- 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 decreases 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 strengthening bones, reducing the risk of fractures, and improving bone health in patients with osteoporosis. Choice B is incorrect because raloxifene does not directly stimulate the formation of new bone but rather prevents bone loss. Choice C is incorrect as raloxifene does not primarily affect calcium absorption in the intestines. Choice D is also incorrect as raloxifene does not primarily decrease the excretion of calcium through the kidneys.
3. The canola plant's genome is altered to produce an herbicide-resistant crop. The canola oil produced from this crop is an example of a:
- A. pesticide-free food.
- B. saturated fat food.
- C. genetically modified food.
- D. product that is pure.
Correct answer: C
Rationale: The correct answer is C: genetically modified food. Canola plants with altered genomes to be herbicide-resistant are an example of genetically modified organisms (GMOs). Genetically modified foods have their genetic material modified for various purposes, such as enhancing resistance to pests, herbicides, or improving nutritional content. Choice A, 'pesticide-free food,' is incorrect because genetic modification does not necessarily make the food pesticide-free. Choice B, 'saturated fat food,' is incorrect as it does not relate to the genetic modification of the canola plant. Choice D, 'product that is pure,' is too vague and does not specifically address the genetic modification aspect of the canola plant.
4. After a thoracentesis on a client with a pleural effusion, which nursing intervention is most important post-procedure?
- A. Monitor for signs of infection.
- B. Assess for signs of bleeding or hematoma.
- C. Monitor vital signs and respiratory status.
- D. Instruct the client to rest and limit physical activity.
Correct answer: B
Rationale: The correct answer is to assess for signs of bleeding or hematoma. After a thoracentesis, it is crucial to monitor for any bleeding or hematoma formation at the puncture site, as this can lead to complications. Monitoring for signs of infection (Choice A) is essential but is usually a delayed concern compared to the immediate risk of bleeding post-procedure. While monitoring vital signs and respiratory status (Choice C) is important, assessing for bleeding takes precedence to address any immediate complications. Instructing the client to rest and limit physical activity (Choice D) is relevant for general post-procedure care but is not the most critical intervention in this scenario.
5. A patient is starting on atorvastatin (Lipitor) for hyperlipidemia. What important instruction should the nurse provide?
- A. Take the medication at night to reduce the risk of muscle pain.
- B. Avoid consuming grapefruit juice while taking this medication.
- C. Take the medication in the morning with breakfast.
- D. Avoid taking the medication with alcohol to reduce the risk of liver damage.
Correct answer: A
Rationale: The correct answer is A. Atorvastatin should be taken at night to reduce the risk of muscle pain and other side effects. Taking it at night aligns with the body's natural rhythm of cholesterol production, optimizing its effectiveness. Choice B is incorrect because grapefruit juice can increase the risk of side effects by affecting the metabolism of atorvastatin. Choice C is incorrect as taking atorvastatin in the morning does not maximize its effectiveness. Choice D is incorrect because alcohol consumption can increase the risk of liver damage when combined with atorvastatin.
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