Nursing Elites

1. What causes atherosclerotic plaques to form in the body?

• A. Poor dietary habits
• B. Administration of statin medication
• C. Interruption of blood flow to the brain
• D. Injury to the endothelium of the coronary arteries

Correct answer: D

Rationale: Atherosclerotic plaques form in the body due to injury to the endothelium of the coronary arteries. When the endothelium is damaged, it triggers an inflammatory response that leads to the accumulation of fats, cholesterol, and other substances, forming plaques. These plaques can narrow the arteries, reducing blood flow and potentially leading to serious complications like heart attacks or strokes. Poor dietary habits (choice A) can contribute to the development of atherosclerosis by promoting the buildup of plaque-forming substances in the blood, but the direct cause is the injury to the endothelium. Administration of statin medication (choice B) is actually a treatment for high cholesterol and aims to reduce the risk of plaque formation. Interruption of blood flow to the brain (choice C) is more related to conditions like ischemic stroke rather than the primary cause of atherosclerotic plaque formation.

2. When taking medroxyprogesterone acetate (Provera) for the treatment of endometriosis, what important instruction should the nurse provide about taking this medication?

• A. Take the medication at the same time each day to maintain consistent hormone levels.
• B. Medroxyprogesterone should be taken without regard to meals.
• C. Discontinuing medroxyprogesterone should only be done under the guidance of a healthcare provider.
• D. Medroxyprogesterone is typically taken daily rather than weekly for the treatment of endometriosis.

Correct answer: A

Rationale: When taking medroxyprogesterone acetate for endometriosis, it is essential to maintain consistent hormone levels by taking the medication at the same time each day. This consistency helps optimize the effectiveness of the treatment. Choice B is incorrect because medroxyprogesterone should be taken without regard to meals, not necessarily with food. Choice C is incorrect because discontinuing the medication without consulting a healthcare provider can be harmful and may not address side effects appropriately. Choice D is incorrect as medroxyprogesterone is typically taken daily to manage endometriosis symptoms, not weekly, to ensure continuous therapy and symptom control.

3. Why is it important for a patient to take a new oral contraceptive at the same time each day?

• A. Taking the medication at the same time each day helps maintain stable hormone levels, which is critical for preventing pregnancy.
• B. Taking the medication at the same time each day reduces the risk of breakthrough bleeding.
• C. Taking the medication at the same time each day ensures consistent absorption and effectiveness.
• D. Taking the medication at the same time each day is important, but missing a dose occasionally is not a concern.

Correct answer: A

Rationale: The correct answer is A. Taking oral contraceptives at the same time each day is crucial for maintaining stable hormone levels, which is essential for the contraceptive's effectiveness in preventing pregnancy. Choice B is incorrect because the primary reason for taking the medication consistently is hormone level stability, not specifically to reduce breakthrough bleeding. Choice C is incorrect as it focuses on absorption and effectiveness, which are important but do not address the main reason for consistent timing. Choice D is incorrect because missing doses can impact contraceptive efficacy, making consistent timing essential for optimal protection.

4. A patient presents with a chronic cough, night sweats, and weight loss. A chest X-ray reveals upper lobe cavitary lesions. Which of the following is the most likely diagnosis?

• A. Tuberculosis
• B. Pneumonia
• C. Lung cancer
• D. Sarcoidosis

Correct answer: A

Rationale: The correct answer is A: Tuberculosis. Cavitary lesions in the upper lobes are classic findings seen in tuberculosis. This infectious disease commonly presents with symptoms such as chronic cough, night sweats, and weight loss. Pneumonia (Choice B) typically does not present with cavitary lesions on chest X-ray. Lung cancer (Choice C) may present with similar symptoms but is less likely to cause cavitary lesions in the upper lobes. Sarcoidosis (Choice D) usually presents with bilateral hilar lymphadenopathy and non-caseating granulomas, different from the cavitary lesions described in the case.

5. A patient's current medical condition is suggestive of impaired erythropoiesis. Which of the following laboratory studies would be most clinically relevant in diagnosing this health problem?

• A. White blood cell count with differential
• B. RBC, hemoglobin, and hematocrit
• C. INR and aPTT
• D. d-dimer and C-reactive protein

Correct answer: B

Rationale: In this scenario, where impaired erythropoiesis is suspected, the most clinically relevant laboratory studies would focus on red blood cell parameters. Therefore, assessing RBC count, hemoglobin levels, and hematocrit values would provide direct insights into erythropoiesis. Choices A, C, and D are not directly related to erythropoiesis assessment. White blood cell count with a differential is more indicative of immune response and infection. INR and aPTT are coagulation studies, while d-dimer and C-reactive protein levels are more associated with inflammation and thrombotic events.

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