ATI RN
Pathophysiology Exam 1 Quizlet
1. What is the primary action of bisphosphonates when prescribed to a patient with osteoporosis?
- A. It inhibits bone resorption, which helps maintain bone density.
- B. It stimulates new bone formation by increasing osteoblast activity.
- C. It increases calcium absorption in the intestines, which helps build stronger bones.
- D. It decreases calcium excretion by the kidneys, helping to maintain bone density.
Correct answer: A
Rationale: The correct answer is A: "It inhibits bone resorption, which helps maintain bone density." Bisphosphonates work by inhibiting bone resorption carried out by osteoclasts, thereby preventing the breakdown of bones and helping to maintain or increase bone density in patients with osteoporosis. Choices B, C, and D are incorrect because bisphosphonates do not directly stimulate new bone formation, increase calcium absorption in the intestines, or decrease calcium excretion by the kidneys.
2. What lab results would be noted in a client with leukocytosis?
- A. Increased white blood cell count
- B. Increased platelet count
- C. Decreased white blood cell count
- D. Decreased platelet count
Correct answer: A
Rationale: Leukocytosis is a condition characterized by an elevated white blood cell count, typically in response to infection or inflammation. Therefore, the correct answer is an increased white blood cell count (Choice A). Increased platelet count (Choice B) is not a typical finding in leukocytosis. Choices C and D, decreased white blood cell count and decreased platelet count respectively, are opposite to what would be expected in leukocytosis and are therefore incorrect.
3. What is a common cause of a pulmonary embolism?
- A. An autoimmune disorder
- B. A venous blood clot from the lower extremity
- C. An increase in intracranial pressure
- D. Hypotension
Correct answer: B
Rationale: A pulmonary embolism is commonly caused by a blood clot that originates in the venous system of the lower extremity and travels to the lungs, blocking blood flow. This clot is known as a venous thromboembolism. An autoimmune disorder (Choice A) is not typically associated with pulmonary embolism. Intracranial pressure (Choice C) refers to pressure inside the skull and is unrelated to pulmonary embolism. Hypotension (Choice D) is low blood pressure and is not a common cause of pulmonary embolism.
4. In which of the following cases is dehydration more likely to occur?
- A. A 50-year-old woman who is a bodybuilder
- B. A 50-year-old man who is morbidly obese
- C. A 10-year-old child who is thin
- D. A 30-year-old with multiple sclerosis
Correct answer: B
Rationale: Dehydration is more likely to occur in a 50-year-old man who is morbidly obese due to the increased risk of conditions like diabetes and heart disease that can lead to fluid imbalances. Being morbidly obese can also strain the body's systems, increasing the need for water. The other choices are less likely to experience dehydration as a primary concern. While being a bodybuilder may require strict hydration practices, dehydration is more prevalent in individuals with conditions like obesity.
5. In menopausal women, what is the primary goal of estrogen therapy?
- A. To relieve menopausal symptoms
- B. To prevent osteoporosis
- C. To increase calcium absorption
- D. To maintain bone strength
Correct answer: B
Rationale: The primary goal of estrogen therapy in menopausal women is to prevent osteoporosis by maintaining bone density. Estrogen helps in preserving bone mass and reducing the risk of fractures. While estrogen therapy may alleviate some menopausal symptoms, such as hot flashes, its primary focus is on bone health rather than symptom management. Increasing calcium absorption and maintaining bone strength are outcomes of preventing osteoporosis rather than the primary goal of estrogen therapy.
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