ATI RN
ATI Pathophysiology Exam 2
1. A patient has a heart attack that leads to progressive cell injury resulting in cell death with severe cell swelling and breakdown of organelles. What term would the nurse use to define this process?
- A. Adaptation
- B. Pathologic calcification
- C. Apoptosis
- D. Necrosis
Correct answer: D
Rationale: The correct answer is D: Necrosis. Necrosis is the process of cell death characterized by cell swelling, breakdown of organelles, and eventual rupture, often following ischemic injury like a heart attack. Choices A, B, and C are incorrect. Adaptation refers to the ability of cells to adjust to changes in their environment. Pathologic calcification is the abnormal deposition of calcium salts in tissues. Apoptosis is a programmed cell death that occurs in a controlled, orderly manner.
2. What tool is used to determine a client’s level of consciousness?
- A. Magnetic resonance imaging (MRI)
- B. Glasgow Coma Scale (GCS)
- C. Central perfusion pressure (CPP)
- D. Intracranial pressure (ICP) monitoring
Correct answer: B
Rationale: The correct answer is B: Glasgow Coma Scale (GCS). The Glasgow Coma Scale is specifically designed to assess a client's level of consciousness by evaluating verbal, motor, and eye-opening responses. Choice A, Magnetic Resonance Imaging (MRI), is a diagnostic imaging tool that provides detailed images of the body's organs and tissues but is not used to assess consciousness levels. Choice C, Central Perfusion Pressure (CPP), and Choice D, Intracranial Pressure (ICP) monitoring, are related to hemodynamic monitoring and intracranial pressure management, not direct assessment of consciousness.
3. A patient has been prescribed raloxifene (Evista) for the prevention of osteoporosis. What effect should the nurse include in the teaching plan regarding the action of this medication?
- A. Decreases calcium excretion by the kidneys.
- B. Increases intestinal absorption of calcium.
- C. Stimulates bone formation by increasing osteoblast activity.
- D. Selectively binds to estrogen receptors, decreasing bone resorption.
Correct answer: D
Rationale: The correct answer is D: Selectively binds to estrogen receptors, decreasing bone resorption. Raloxifene is a selective estrogen receptor modulator (SERM) that works by binding to estrogen receptors, thereby decreasing bone resorption. This action helps in the prevention and treatment of osteoporosis by preserving bone density. Choices A, B, and C are incorrect because raloxifene does not directly affect calcium excretion by the kidneys, intestinal absorption of calcium, or stimulate bone formation by increasing osteoblast activity.
4. A client presents to the emergency department with lower right quadrant abdominal pain, fever, nausea, and occasional diarrhea. After palpating the abdomen, the client displays tenderness. What would the nurse anticipate the client to be experiencing?
- A. Pseudomembranous colitis
- B. Peptic ulcer disease
- C. Appendicitis
- D. Esophageal cancer
Correct answer: C
Rationale: The correct answer is C: Appendicitis. The symptoms described - lower right quadrant abdominal pain, fever, nausea, diarrhea, and tenderness upon palpation - are classic signs of appendicitis. Appendicitis is an inflammatory condition of the appendix that often presents with these symptoms and requires immediate medical attention. Choice A, Pseudomembranous colitis, typically presents with watery diarrhea and is associated with antibiotic use. Choice B, Peptic ulcer disease, commonly presents with epigastric pain related to meals and can be accompanied by nausea or vomiting, but it does not typically cause right lower quadrant pain. Choice D, Esophageal cancer, usually presents with symptoms related to swallowing difficulties, weight loss, and sometimes chest pain, but it is not associated with the symptoms described in the scenario.
5. Why is a beta-blocker prescribed to a client with a history of myocardial infarction?
- A. To reduce myocardial oxygen demand.
- B. To increase cardiac output.
- C. To prevent arrhythmias.
- D. To prevent the development of angina.
Correct answer: A
Rationale: The primary reason for administering a beta-blocker to a client with a history of myocardial infarction is to reduce myocardial oxygen demand. By reducing myocardial oxygen demand, beta-blockers help decrease the workload on the heart, making it easier for the heart to function effectively. This is crucial for clients with a history of myocardial infarction to prevent further damage to the heart. Choice B is incorrect because beta-blockers do not aim to increase cardiac output; instead, they help improve cardiac function by reducing workload. Choice C is incorrect because while beta-blockers can help prevent certain arrhythmias, the primary reason for their use in this case is to reduce myocardial oxygen demand. Choice D is incorrect as preventing angina is not the primary purpose of administering beta-blockers to a client with a history of myocardial infarction.
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