ATI RN
ATI Pathophysiology Exam 1
1. A patient is hospitalized due to nonadherence to an antitubercular drug treatment. Which of the following is most important for the nurse to do?
- A. Observe the patient taking the medications.
- B. Administer the medications parenterally.
- C. Instruct the family on the medication regimen.
- D. Count the number of tablets in the bottle daily.
Correct answer: A
Rationale: In this scenario, the most crucial action for the nurse to take is to observe the patient taking the medications. This ensures that the patient is actually consuming the prescribed antitubercular drugs, addressing the issue of nonadherence directly. Administering the medications parenterally (intravenously or intramuscularly) is not necessary unless there are specific medical reasons requiring this route of administration. Instructing the family on the medication regimen is important for support but may not directly address the patient's nonadherence. Counting the number of tablets in the bottle daily is not as effective as directly observing the patient taking the medications to ensure compliance.
2. A patient with severe peripheral vascular disease has developed signs of dry gangrene on the great toe of one foot. Which of the following pathophysiologic processes most likely contributed to this diagnosis?
- A. Inappropriate activation of apoptosis
- B. Bacterial invasion
- C. Impaired arterial blood supply
- D. Metaplastic cellular changes
Correct answer: C
Rationale: The correct answer is C: Impaired arterial blood supply. Dry gangrene is typically caused by impaired arterial blood supply, leading to tissue death without bacterial infection. Choices A, B, and D are incorrect. Inappropriate activation of apoptosis is not a common cause of dry gangrene. Bacterial invasion usually leads to wet gangrene, not dry gangrene. Metaplastic cellular changes are not directly associated with the development of dry gangrene.
3. When does pain in the lower extremities due to peripheral artery disease usually worsen?
- A. with rest because blood flow decreases.
- B. with elevation of the extremity because blood is diverted away.
- C. when the leg is in a dependent position because blood pools.
- D. when the leg is touched or massaged because cytokines are released.
Correct answer: B
Rationale: Pain in the lower extremities due to peripheral artery disease usually worsens with elevation of the extremity because blood is diverted away from the affected area, leading to decreased perfusion and exacerbation of symptoms. Choices A, C, and D are incorrect because resting, dependent position, and touch/massage do not typically worsen the pain associated with peripheral artery disease.
4. Which of the following is the most appropriate diagnostic method for identifying lung cancer in its early stages?
- A. CT scan
- B. MRI
- C. X-ray
- D. Biopsy
Correct answer: D
Rationale: A biopsy is the most appropriate method for diagnosing lung cancer in its early stages. A biopsy involves taking a small tissue sample from the lung for examination under a microscope. This method provides a definitive diagnosis by identifying cancerous cells. CT scans, MRIs, and X-rays can help detect abnormalities in the lungs, but a biopsy is necessary to confirm the presence of lung cancer. CT scans offer detailed images of the lung's structure, MRIs use magnetic fields for imaging soft tissues, and X-rays provide a basic view of the lungs, but none of these imaging techniques can definitively confirm the presence of cancer without a biopsy.
5. Mrs. Mendoza is a 75-year-old client who has dementia of the Alzheimer’s type and confabulates. The nurse understands that this client:
- A. Denies confusion by being jovial.
- B. Pretends to be someone else.
- C. Rationalizes various behaviors.
- D. Fills in memory gaps with fantasy.
Correct answer: D
Rationale: Confabulation, a common symptom in dementia, involves filling in memory gaps with fabricated stories rather than intentionally pretending to be someone else (Choice B), denying confusion by being jovial (Choice A), or rationalizing various behaviors (Choice C). Confabulation is not a deliberate act but a memory error that results in the creation of false memories.
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