ATI RN
Pathophysiology Final Exam
1. A public health nurse is responsible for the administration of numerous immunizations. Which of the following guidelines regarding anaphylaxis should the nurse adhere to?
- A. The patient should be observed for anaphylaxis for 1 minute after administration.
- B. The patient should be observed for anaphylaxis for 5 minutes after administration.
- C. The patient should be observed for anaphylaxis for 30 minutes after administration.
- D. The patient should be observed for anaphylaxis for 90 minutes after administration.
Correct answer: C
Rationale: The correct answer is C: 'The patient should be observed for anaphylaxis for 30 minutes after administration.' This is because anaphylaxis can occur within minutes of administration of an immunization. By observing the patient for 30 minutes, the nurse can promptly identify and manage any signs of anaphylaxis. Choices A, B, and D are incorrect as they suggest shorter or longer observation periods, which may not be sufficient to detect and respond to anaphylaxis in a timely manner.
2. A nurse is teaching a young adult patient about oral contraceptives, which the patient will soon begin taking. The patient's primary concern is the effectiveness of the medication in preventing pregnancy. The nurse should teach the patient that oral contraceptives, when taken consistently, are how effective in preventing pregnancy?
- A. Between 96% and 98%
- B. Approximately 98.5%
- C. Highly effective, but partially dependent on genetic factors
- D. Nearly 100%
Correct answer: D
Rationale: When taken correctly, estrogen–progestin contraceptive preparations are nearly 100% effective in preventing pregnancy. Choices A, B, and C are incorrect. Choice A suggests a range below the actual effectiveness, choice B provides a specific percentage that is not accurate, and choice C introduces the concept of genetic factors which is not relevant to the effectiveness of oral contraceptives.
3. A patient with breast cancer is prescribed tamoxifen (Nolvadex). What critical information should the nurse provide during patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. Tamoxifen may decrease the risk of osteoporosis, so adequate calcium intake is important.
- C. Tamoxifen may cause weight gain, so patients should monitor their diet.
- D. Tamoxifen may increase the risk of breast cancer, so regular mammograms are essential.
Correct answer: A
Rationale: When a patient is prescribed tamoxifen, a critical piece of information that the nurse should provide during patient education is that tamoxifen may increase the risk of venous thromboembolism. Therefore, patients should be educated about the signs and symptoms of blood clots and advised to seek immediate medical attention if they occur. Choice B is incorrect because tamoxifen does not decrease the risk of osteoporosis. Choice C is incorrect as weight gain is a possible side effect of tamoxifen, but it is not a critical piece of information compared to the risk of venous thromboembolism. Choice D is incorrect because tamoxifen is actually used to treat breast cancer, not increase its risk.
4. A 45-year-old client is admitted with new-onset status epilepticus. What is the priority nursing intervention?
- A. Administer IV fluids and monitor electrolytes.
- B. Administer antiepileptic medications as prescribed.
- C. Ensure a patent airway and prepare for possible intubation.
- D. Monitor the client for signs of hypotension.
Correct answer: C
Rationale: The correct answer is C. In a client with new-onset status epilepticus, the priority nursing intervention is to ensure a patent airway and prepare for possible intubation. This is crucial to prevent hypoxia and further complications. Administering IV fluids and monitoring electrolytes (choice A) can be important but ensuring airway patency takes precedence. Administering antiepileptic medications (choice B) is essential but only after securing the airway. Monitoring for hypotension (choice D) is also important but not the priority when managing status epilepticus.
5. What key contraindication should the nurse emphasize to a patient prescribed sildenafil (Viagra) for erectile dysfunction?
- A. Sildenafil is contraindicated in patients taking nitrates due to the risk of severe hypotension.
- B. Sildenafil should not be taken with food as it can reduce its effectiveness.
- C. Sildenafil is contraindicated in patients with a history of hypertension.
- D. Sildenafil should not be taken with grapefruit juice as it can lead to dangerous side effects.
Correct answer: A
Rationale: The correct answer is A. Sildenafil is contraindicated in patients taking nitrates due to the risk of severe hypotension. Nitrates and sildenafil both cause vasodilation, leading to a synergistic effect that can result in a dangerous drop in blood pressure. Choices B, C, and D are incorrect because there is no specific contraindication for taking sildenafil with food, having a history of hypertension, or taking it with grapefruit juice. The main concern is the concurrent use of nitrates with sildenafil.
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