ATI RN
ATI Pathophysiology Exam 2
1. Helicobacter pylori (H. pylori) often causes which of the following?
- A. Colon cancer
- B. Hiatal hernia
- C. Peptic ulcer disease
- D. Esophageal varices
Correct answer: C
Rationale: Helicobacter pylori is a bacterium known to cause peptic ulcer disease by weakening the protective lining of the stomach and duodenum, leading to inflammation and ulcers. While chronic H. pylori infection is a risk factor for stomach cancer, it is not directly linked to colon cancer (Choice A), hiatal hernia (Choice B), or esophageal varices (Choice D). Therefore, the correct answer is C.
2. A nurse is teaching a patient about the use of raloxifene (Evista) for the prevention of osteoporosis. What is the primary therapeutic action of this medication?
- A. It decreases the absorption of calcium from the intestines.
- B. It decreases bone resorption and increases bone density.
- C. It increases the excretion of calcium through the kidneys.
- D. It stimulates the formation of new bone.
Correct answer: B
Rationale: The correct answer is B. Raloxifene, a selective estrogen receptor modulator (SERM), works by decreasing bone resorption and increasing bone density. This action helps in preventing osteoporosis by maintaining bone strength. Choice A is incorrect as raloxifene does not affect the absorption of calcium from the intestines. Choice C is incorrect as raloxifene does not increase the excretion of calcium through the kidneys. Choice D is incorrect as raloxifene does not directly stimulate the formation of new bone; instead, it primarily works by reducing bone loss.
3. A patient who is taking metronidazole for the past 4 days for the treatment of a parasitic infection reports to the nurse that his most recent dose made him 'flushed, sweaty, and sick in the stomach.' What assessment is most likely to address the cause of this phenomenon?
- A. “Have you experienced any allergic reactions to metronidazole before?”
- B. “Did you drink any alcoholic beverages around the time of taking the drug?”
- C. “Did you take this dose on an empty stomach?”
- D. “Are you currently using any over-the-counter antihistamines?”
Correct answer: B
Rationale: The correct answer is B. Metronidazole can cause a disulfiram-like reaction when taken with alcohol, leading to symptoms such as flushing, sweating, and gastrointestinal upset. Asking the patient about alcohol consumption can help identify if this reaction is due to alcohol interaction. Choice A is incorrect as it focuses on penicillin allergy, which is not relevant to metronidazole. Choice C is less likely to cause the reported symptoms and is not a common concern with metronidazole. Choice D is not directly related to the symptoms described by the patient.
4. A nurse practitioner is seeing a client in the clinic with a suspected diagnosis of bacterial meningitis. What should the nurse anticipate as the priority action?
- A. Administer the first dose of antibiotics immediately after blood cultures are drawn.
- B. Start an IV line and administer corticosteroids to reduce inflammation.
- C. Isolate the client to prevent the spread of infection.
- D. Perform a lumbar puncture to confirm the diagnosis.
Correct answer: A
Rationale: The correct answer is to administer the first dose of antibiotics immediately after blood cultures are drawn for suspected bacterial meningitis. This is crucial to initiate treatment promptly and improve patient outcomes. Starting an IV line and administering corticosteroids (Choice B) may be part of the treatment plan but administering antibiotics is the priority. Isolating the client (Choice C) is important to prevent the spread of infection but not the priority over initiating antibiotic therapy. Performing a lumbar puncture (Choice D) may confirm the diagnosis, but treatment should not be delayed for this step in suspected cases of bacterial meningitis.
5. Which of the following birthmarks usually fade or regress as the child gets older?
- A. Hemangiomas
- B. Congenital dermal melanocytosis (i.e., Mongolian spots)
- C. Macular stains
- D. Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains
Correct answer: D
Rationale: The correct answer is Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains. These three types of birthmarks are known to fade or regress as the child gets older. Hemangiomas are vascular birthmarks that often shrink and disappear over time. Congenital dermal melanocytosis, commonly known as Mongolian spots, usually fade by adolescence. Macular stains, also called salmon patches, tend to lighten and fade as a child grows. The other choices are incorrect because they do not typically fade or regress with age.
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