ATI RN
Final Exam Pathophysiology
1. When preparing to administer parenteral acyclovir (Zovirax) to an 80-year-old patient with chronic renal failure and herpes simplex, what would the nurse expect in regard to the dose?
- A. The dose is smaller due to the herpes simplex infection.
- B. The dose is smaller based on the patient's kidney function.
- C. The dose is higher in treating genital herpes.
- D. The dose is higher if the creatinine clearance is above 4.0 mg/dL.
Correct answer: B
Rationale: In patients with chronic renal failure, especially in older adults, dosages of medications excreted renally need to be adjusted based on kidney function. Acyclovir is primarily eliminated by the kidneys, so in a patient with chronic renal failure, the dose would need to be smaller to prevent drug accumulation and toxicity. Choice A is incorrect because the dose adjustment is more related to the patient's kidney function than the presence of herpes simplex. Choice C is incorrect because the type of herpes infection does not determine the dose adjustment for acyclovir. Choice D is incorrect as the creatinine clearance is a more accurate measure of kidney function compared to creatinine levels.
2. A staff member asks what leukocytosis means. How should the nurse respond? Leukocytosis can be defined as:
- A. A normal leukocyte count
- B. A high leukocyte count
- C. A low leukocyte count
- D. Another term for leukopenia
Correct answer: B
Rationale: Leukocytosis refers to an abnormally high leukocyte count. This condition is characterized by an elevated number of white blood cells in the bloodstream. Choice A is incorrect because leukocytosis does not refer to a normal leukocyte count. Choice C is incorrect as leukocytosis is not related to a low leukocyte count. Choice D is incorrect as leukopenia is the opposite of leukocytosis, indicating a low white blood cell count.
3. A nurse is providing education to a patient starting hormone replacement therapy (HRT) for menopausal symptoms. What should the nurse emphasize regarding the long-term risks associated with HRT?
- A. HRT may increase the risk of cardiovascular events, including heart attack and stroke.
- B. HRT may decrease the risk of osteoporosis.
- C. HRT may improve mood and energy levels.
- D. HRT may decrease the risk of breast cancer.
Correct answer: A
Rationale: HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke, particularly with long-term use.
4. 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.
5. Which of the following best describes Cushing’s syndrome?
- A. Hypersecretion of growth hormone
- B. Excessive production of cortisol by the adrenal glands
- C. Insufficient production of insulin
- D. Increased levels of ACTH
Correct answer: B
Rationale: Cushing’s syndrome is characterized by the excessive production of cortisol by the adrenal glands, not growth hormone (Choice A), insulin (Choice C), or ACTH (Choice D). The increased cortisol levels lead to a variety of symptoms associated with Cushing’s syndrome.
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