ATI RN
ATI Pathophysiology Exam
1. 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.
2. Which of the following characterizes ductal carcinoma in situ?
- A. It is less common than lobular carcinoma in situ.
- B. Malignant cells have not invaded the stroma.
- C. It is considered a cancer precursor.
- D. Malignant cells have not invaded the stroma; it is considered a cancer precursor and has a higher risk for invasive cancer compared to lobular carcinoma in situ.
Correct answer: D
Rationale: The correct answer is that ductal carcinoma in situ is characterized by malignant cells that have not invaded the stroma, making it a cancer precursor with a higher risk for invasive cancer compared to lobular carcinoma in situ. Choice A is incorrect because ductal carcinoma in situ is more common than lobular carcinoma in situ. Choice B is incorrect as it only partially describes ductal carcinoma in situ without mentioning its potential for progression to invasive cancer. Choice C is incorrect because it does not capture the complete characteristics of ductal carcinoma in situ, which include the risk for invasive cancer.
3. A nurse is teaching a patient about the use of testosterone gel for the treatment of hypogonadism. What important instruction should the nurse provide?
- A. Apply the gel after showering, and allow it to dry completely before dressing.
- B. Apply the gel to the genitals for maximum absorption.
- C. Apply the gel before bedtime to enhance absorption during sleep.
- D. Apply the gel to the face and neck for improved results.
Correct answer: A
Rationale: The correct instruction is to apply testosterone gel after showering and allow it to dry completely before dressing. This helps prevent the transfer of the gel to others and ensures proper absorption. Choice B is incorrect because the gel should not be applied to the genitals. Choice C is incorrect as there is no specific benefit to applying the gel before bedtime. Choice D is incorrect as the gel should not be applied to the face and neck for the treatment of hypogonadism.
4. Which information would indicate more teaching is needed regarding hypersensitivity reactions? Type _______ hypersensitivity reactions involve an antibody response.
- A. I
- B. II
- C. III
- D. IV
Correct answer: D
Rationale: The correct answer is D: Type IV hypersensitivity reactions involve cell-mediated immunity, not an antibody response. This question tests knowledge of hypersensitivity reactions and their classification. Type I hypersensitivity reactions involve IgE antibodies, Type II involves IgG or IgM antibodies, and Type III involves immune complex deposition. Type IV hypersensitivity reactions are delayed and involve T cells, not antibodies. Therefore, if a person believes that Type IV hypersensitivity reactions involve an antibody response, more teaching is required.
5. A client with Guillain-Barré syndrome is experiencing ascending paralysis. Which of the following interventions should the nurse prioritize?
- A. Monitor for signs of respiratory distress.
- B. Prepare the client for plasmapheresis.
- C. Administer analgesics for pain management.
- D. Initiate passive range-of-motion exercises.
Correct answer: A
Rationale: The correct answer is A: Monitor for signs of respiratory distress. In Guillain-Barré syndrome, ascending paralysis can lead to respiratory muscle involvement, putting the client at risk for respiratory distress and failure. Prioritizing respiratory monitoring is crucial to ensure timely intervention if respiratory compromise occurs. Plasmapheresis (Choice B) may be indicated in some cases to remove harmful antibodies, but the priority in this situation is respiratory support. Administering analgesics (Choice C) for pain management and initiating passive range-of-motion exercises (Choice D) are important aspects of care but are not the priority when the client's respiratory status is at risk.
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