ATI RN
WGU Pathophysiology Final Exam
1. Which type of lymphocyte recognizes and eliminates virus-infected cells and cancerous cells?
- A. Neutrophils
- B. Macrophages
- C. Natural killer cells
- D. Langerhans cells
Correct answer: C
Rationale: Natural killer cells are a type of lymphocyte that plays a crucial role in recognizing and eliminating virus-infected cells and cancerous cells. Neutrophils (Choice A) are a type of white blood cell involved in fighting infections, mainly through phagocytosis. Macrophages (Choice B) are another type of white blood cell that engulfs and digests cellular debris and pathogens. Langerhans cells (Choice D) are a type of dendritic cell found in the skin and mucosa, primarily involved in antigen presentation.
2. What specific instructions should the nurse provide to ensure proper administration of alendronate (Fosamax) for the treatment of osteoporosis?
- A. Take the medication with a full glass of water and remain upright for at least 30 minutes.
- B. Take the medication at bedtime to ensure absorption during sleep.
- C. Take the medication with milk to enhance calcium absorption.
- D. Take the medication with food to prevent gastrointestinal upset.
Correct answer: A
Rationale: The correct answer is to take the medication with a full glass of water and remain upright for at least 30 minutes. This is important to prevent esophageal irritation and ensure proper absorption. Choice B is incorrect because alendronate should be taken in the morning on an empty stomach, at least 30 minutes before eating or drinking anything other than water. Choice C is incorrect because alendronate should not be taken with milk as it can interfere with its absorption. Choice D is incorrect because alendronate should be taken on an empty stomach, not with food.
3. A patient began antiretroviral therapy several weeks ago for the treatment of HIV, and he has now presented to the clinic for a scheduled follow-up appointment. He states to the nurse, “I've been pretty good about taking all my pills on time, though it was a bit hit and miss over the holiday weekend.” How should the nurse best respond to this patient's statement?
- A. “Remember that if you miss a dose, you need to take a double dose at the next scheduled time.”
- B. “It's acceptable to miss an occasional dose as long as your symptoms don't worsen, but it's important to strive for consistent adherence.”
- C. “Remember that your antiretroviral drugs will only be effective if you take them consistently and as prescribed.”
- D. “If you're not consistent with taking your medications, you're likely to develop more side effects.”
Correct answer: C
Rationale: The correct response is to remind the patient that antiretroviral drugs are most effective when taken consistently and as prescribed. Choice A is incorrect because taking a double dose after missing a dose is not recommended, as it can lead to medication toxicity. Choice B is incorrect as it may give the impression that missing doses is acceptable, which can reduce the effectiveness of the treatment. Choice D is incorrect because while consistency is important, the focus should be on treatment effectiveness rather than side effects.
4. Which ability should Nurse Rebecca expect from a client in the mild stage of dementia of the Alzheimer’s type?
- A. Remembering the daily schedule
- B. Recalling past events
- C. Coping with anxiety
- D. Solving problems of daily living
Correct answer: B
Rationale: In the mild stage of dementia of the Alzheimer’s type, clients can often recall past events but may have difficulty with new information. Therefore, Nurse Rebecca should expect the client to have the ability to recall past events. Choice A is incorrect because remembering the daily schedule may become challenging as the disease progresses. Choice C is incorrect as clients in the mild stage may experience anxiety, but coping with anxiety is not a specific ability associated with this stage of dementia. Choice D is incorrect as solving problems of daily living becomes more challenging as the disease advances, not in the mild stage.
5. Joseph, a 12-year-old child, complains to the school nurse about nausea and dizziness. While assessing the child, the nurse notices a black eye that looks like an injury. This is the third time in 1 month that the child has visited the nurse. Each time, the child provides vague explanations for various injuries. Which of the following is the school nurse’s priority intervention?
- A. Contact the child’s parents and ask about the child’s injuries.
- B. Encourage the child to be honest about the injuries.
- C. Question the teacher about the child's injuries.
- D. Report suspicion of abuse to the proper authorities.
Correct answer: D
Rationale: The school nurse's priority intervention in this situation is to report suspicion of abuse to the proper authorities. Given the pattern of unexplained injuries and vague explanations provided by the child, it raises significant concerns for possible abuse. Reporting to the appropriate authorities is crucial to ensure the child's safety and well-being. Contacting the child's parents (Choice A) may not be appropriate if abuse is suspected, as it could potentially put the child at further risk. Merely encouraging the child to be honest (Choice B) does not address the immediate safety concerns. Questioning the teacher (Choice C) is not the appropriate initial action when abuse is suspected; reporting to authorities should take precedence.
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