a 57 year old male presents to his primary care provider for red face hands feet ears and headache and drowsiness a blood smear reveals an increased n
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ATI Pathophysiology Quizlet

1. A 57-year-old male presents to his primary care provider with a red face, hands, feet, ears, headache, and drowsiness. A blood smear reveals an increased number of erythrocytes, indicating:

Correct answer: D

Rationale: In this case, the symptoms of a red face, hands, feet, ears, headache, and drowsiness along with an increased number of erythrocytes in the blood smear are indicative of polycythemia vera. This condition is characterized by the overproduction of red blood cells, leading to symptoms related to increased blood volume and viscosity. Leukemia (Choice A) is a cancer of the blood and bone marrow, but the presentation described here is more suggestive of polycythemia vera. Sideroblastic anemia (Choice B) is characterized by abnormal iron deposits in erythroblasts, not an increased number of erythrocytes. Hemosiderosis (Choice C) refers to abnormal accumulation of iron in the body, not an increase in red blood cells as seen in polycythemia vera.

2. The parents of a 3-year-old boy have brought him to a pediatrician for assessment of the boy's late ambulation and frequent falls. Subsequent muscle biopsy has confirmed a diagnosis of Duchenne muscular dystrophy. Which teaching point should the physician include when explaining the child's diagnosis to his parents?

Correct answer: A

Rationale: The correct teaching point that the physician should include when explaining Duchenne muscular dystrophy to the parents is that 'Your child may develop breathing difficulties as the disease progresses.' Duchenne muscular dystrophy is a progressive condition that affects muscle strength, including respiratory muscles, leading to breathing difficulties as the disease advances. Choice B is incorrect because while physical therapy and exercise can help maintain muscle function and mobility, they do not cure the condition. Choice C is incorrect because Duchenne muscular dystrophy is a genetic disorder with no known cure. Choice D is incorrect as Duchenne muscular dystrophy is primarily characterized by a lack of dystrophin protein due to genetic mutations, not inflammation in the muscles.

3. Which statement best conveys an aspect of the role of cerebrospinal fluid (CSF)?

Correct answer: B

Rationale: The correct answer is B. Cerebrospinal fluid primarily cushions the brain and spinal cord, protecting them from injury. Choice A is incorrect because while CSF contributes to the brain's immune environment, its main role is not providing immune protection as a physical barrier. Choice C is incorrect because CSF has a significant role in the exchange of nutrients and waste products, rather than a limited one. Choice D is incorrect as CSF is not primarily a medium for nerve impulse transmission, but rather serves as a protective and supportive fluid.

4. What important instruction should the nurse provide about taking medroxyprogesterone acetate (Provera) for a patient with endometriosis?

Correct answer: A

Rationale: The correct answer is to take the medication at the same time each day to maintain consistent hormone levels and effectiveness. This consistency is crucial for achieving therapeutic outcomes. Choice B is incorrect because medroxyprogesterone should be taken at the same time each day, regardless of food intake. Choice C is incorrect because side effects should be reported to the healthcare provider for further evaluation rather than discontinuing the medication abruptly. Choice D is incorrect as medroxyprogesterone is usually taken daily for the prescribed duration.

5. Which of the following is a characteristic of disseminated intravascular coagulation (DIC)?

Correct answer: B

Rationale: Disseminated intravascular coagulation (DIC) is characterized by simultaneous clotting and bleeding throughout the body. This imbalance in the body's clotting system leads to the formation of blood clots in small blood vessels, which can consume clotting factors and platelets, ultimately leading to excessive bleeding. Choices A, C, and D are incorrect because they do not describe the characteristic feature of DIC, which involves both clotting and bleeding.

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