ATI RN
Pathophysiology Practice Exam
1. When the maternal immune system becomes sensitized against antigens expressed by the fetus, what type of immune reaction occurs?
- A. Autoimmune
- B. Anaphylaxis
- C. Alloimmune
- D. Allergic
Correct answer: C
Rationale: When the maternal immune system becomes sensitized against antigens expressed by the fetus, an alloimmune reaction occurs. In this situation, the mother's immune system recognizes the fetus as foreign due to differences in antigens, leading to an immune response against the fetus. Choice A, 'Autoimmune,' is incorrect because it refers to the immune system mistakenly attacking the body's own cells and tissues. Choice B, 'Anaphylaxis,' is not the correct answer as it is a severe allergic reaction that can be life-threatening. Choice D, 'Allergic,' is also incorrect as it refers to an immune response triggered by allergens, not antigens expressed by the fetus.
2. What is a potential benefit of social media?
- A. Sharing the fun side of nursing by posting a video of nurses singing and dancing in the hallways of the hospital while on duty
- B. Connecting with clients to keep up with their health status
- C. Connecting with the public to encourage healthy behaviors
- D. Sharing pictures of interesting clinical experiences with friends
Correct answer: C
Rationale: The correct answer is C. Connecting with the public to encourage healthy behaviors is a significant benefit of social media. While sharing the fun side of nursing (choice A) and sharing pictures of clinical experiences (choice D) can showcase the profession, they do not directly promote healthy behaviors. Connecting with clients (choice B) is important for healthcare but is more specific to individual patient care rather than a broad public health impact.
3. A nurse is caring for a client who has a pneumothorax and is being treated with a chest tube. Which of the following findings indicates that the lung has re-expanded?
- A. There is no fluctuation in the water seal chamber.
- B. There is continuous bubbling in the suction control chamber.
- C. There is tidaling in the water seal chamber.
- D. The drainage system is positioned at the level of the client's chest.
Correct answer: A
Rationale: The correct answer is A: 'There is no fluctuation in the water seal chamber.' In a client with a pneumothorax being treated with a chest tube, the absence of fluctuation in the water seal chamber indicates that the lung has re-expanded. This finding suggests that there is no air leak from the lung into the pleural space. Choices B and C are incorrect because continuous bubbling in the suction control chamber or tidaling in the water seal chamber would suggest ongoing air leakage, indicating that the lung has not fully re-expanded. Choice D is also incorrect as the position of the drainage system does not directly indicate lung re-expansion.
4. A client has a prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take this medication in the morning.
- B. Increase intake of potassium-rich foods.
- C. Take this medication with food.
- D. Monitor for signs of dehydration.
Correct answer: D
Rationale: The correct answer is to monitor for signs of dehydration. Hydrochlorothiazide is a diuretic that can lead to fluid loss and electrolyte imbalance, potentially causing dehydration. Signs of dehydration include dry mouth, increased thirst, and decreased urine output. It is important for the client to be vigilant in monitoring and reporting these symptoms to healthcare providers to prevent complications. Choices A, B, and C are incorrect because taking the medication in the morning, increasing potassium-rich foods, or taking the medication with food are not specific instructions related to the potential side effects of Hydrochlorothiazide.
5. A nurse is developing a care plan for a client who is receiving nitroprusside for severe hypertension. Which action should the nurse include?
- A. Administer calcium gluconate at the bedside.
- B. Monitor blood pressure every 2 hours.
- C. Limit light exposure to the infusion.
- D. Keep the client on NPO status.
Correct answer: C
Rationale: The correct action the nurse should include in the care plan for a client receiving nitroprusside for severe hypertension is to limit light exposure to the infusion. Nitroprusside is light-sensitive, so it should be protected from light exposure to prevent degradation. Administering calcium gluconate at the bedside is not directly related to nitroprusside administration. Monitoring blood pressure every 2 hours is a good practice but is not specifically related to the administration of nitroprusside. Keeping the client on NPO status is not necessary solely based on receiving nitroprusside.
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