ATI RN
ATI Pathophysiology Exam
1. When evaluating the success of adding raltegravir to the drug regimen of a 42-year-old female patient with HIV, which laboratory value should the nurse prioritize?
- A. The patient's C-reactive protein levels
- B. The patient's erythrocyte sedimentation rate (ESR)
- C. The patient's viral load
- D. The patient's CD4 count
Correct answer: C
Rationale: The correct answer is C: The patient's viral load. In HIV management, monitoring the viral load is crucial to assess the effectiveness of antiretroviral therapy. A decrease in viral load indicates the treatment's success in controlling the HIV infection. Choices A, B, and D are less relevant in this context. C-reactive protein levels and erythrocyte sedimentation rate are markers of inflammation and non-specific indicators of infection, not specifically for HIV. CD4 count is important but not as immediate for evaluating the response to the newly added medication compared to monitoring the viral load.
2. What signs and symptoms most likely prompted this patient to initially seek care?
- A. Malaise and fatigue
- B. Severe diarrhea
- C. Intermittent fever
- D. Dizziness and confusion
Correct answer: B
Rationale: The correct answer is B: Severe diarrhea. A patient who has recently returned from a trip to Nepal with a nongovernmental organization and is seeking care for amebiasis would most likely have been prompted by the symptom of severe diarrhea. Amebiasis is an infection caused by the parasite Entamoeba histolytica, commonly transmitted through contaminated food or water sources in developing countries like Nepal. The hallmark symptom of amebiasis is dysentery, which is characterized by severe diarrhea with blood or mucus in the stool. Malaise and fatigue (choice A) are nonspecific symptoms that may accompany many illnesses and are not specific to amebiasis. Intermittent fever (choice C) is not a typical presenting symptom of amebiasis, which primarily manifests with gastrointestinal symptoms. Dizziness and confusion (choice D) are also not typical symptoms associated with amebiasis.
3. A patient is taking medroxyprogesterone acetate (Provera) for the treatment of endometriosis. What should the nurse teach the patient about this medication?
- A. Medroxyprogesterone should be taken with food to prevent nausea.
- B. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels.
- C. Medroxyprogesterone can be taken intermittently when symptoms worsen.
- D. Medroxyprogesterone should be stopped if side effects occur.
Correct answer: B
Rationale: The correct answer is B. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels and effectiveness. Choice A is incorrect because medroxyprogesterone does not necessarily need to be taken with food. Choice C is incorrect as it is typically prescribed continuously rather than intermittently. Choice D is incorrect because patients should not stop the medication if side effects occur without consulting their healthcare provider.
4. A client with diabetes mellitus has just undergone a right, below-the-knee amputation following gangrene infection. A few days after the amputation, the client confides in the nurse that he still feels his right foot. Knowing the pathophysiologic principles behind this, the nurse can:
- A. administer a psychotropic medication to help the client cope with the sensation of his amputated leg.
- B. explain that many amputees have this sensation and that one theory surmises the end of a regenerating nerve becomes trapped in the scar tissue of the amputation site.
- C. call the physician and request an order for a psychological consult.
- D. educate the client that this area has an unusually abnormal increase in sensitivity to sensation but that it will go away with time.
Correct answer: B
Rationale: The correct answer is B. The sensation of feeling the amputated limb is known as phantom limb pain, which is common after amputation. One theory suggests that it occurs because the end of a regenerating nerve becomes trapped in the scar tissue at the amputation site. Administering psychotropic medication (choice A) is not the first-line treatment for phantom limb pain. Requesting a psychological consult (choice C) is premature without first addressing the known pathophysiological basis of phantom limb pain. Educating the client that the sensitivity will go away with time (choice D) is not entirely accurate as phantom limb pain can persist long-term.
5. Which disorder is caused by a Staphylococcus aureus organism producing a toxin leading to exfoliation and large blister formation?
- A. Herpes simplex I virus
- B. Bullous impetigo
- C. Necrotizing fasciitis
- D. Cellulitis
Correct answer: B
Rationale: Bullous impetigo is the correct answer because it is caused by a Staphylococcus aureus toxin that leads to exfoliation and the formation of large blisters. Herpes simplex I virus (Choice A) causes cold sores and is not associated with exfoliation and blister formation. Necrotizing fasciitis (Choice C) is a severe skin infection involving the deeper layers of skin and subcutaneous tissues, typically caused by bacteria such as Streptococcus or Clostridium species, not Staphylococcus aureus. Cellulitis (Choice D) is a common bacterial skin infection, but it does not involve exfoliation and blister formation as seen in bullous impetigo.
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