ATI RN
Pathophysiology Practice Exam
1. What should the nurse include in patient education regarding the effectiveness of oral contraceptives?
- A. Oral contraceptives are highly effective when taken correctly but not 100% foolproof.
- B. Oral contraceptives may take some time to reach full effectiveness after starting.
- C. Oral contraceptives can be less effective if taken with certain antibiotics.
- D. Taking oral contraceptives with food does not significantly affect their efficacy.
Correct answer: C
Rationale: The correct answer is C. Oral contraceptives can be less effective when taken with certain antibiotics due to potential drug interactions that may reduce contraceptive efficacy. It is crucial for patients to be aware of this to consider additional contraceptive measures when prescribed antibiotics. Choice A is incorrect because while oral contraceptives are highly effective when taken correctly, they are not 100% foolproof. Choice B is incorrect as oral contraceptives may take some time to reach their full effectiveness after starting. Choice D is also incorrect as taking oral contraceptives with food does not significantly affect their efficacy.
2. A patient has been using Viagra on an intermittent basis for several years. However, he has cited delays in the onset and peak of action as the occasional source of frustration. What PDE5 inhibitor may be of particular benefit to this patient's needs?
- A. Avanafil (Stendra)
- B. Tadalafil (Cialis)
- C. Vardenafil (Levitra)
- D. Alprostadil (Caverject)
Correct answer: A
Rationale: The correct answer is Avanafil (Stendra). Avanafil has a rapid onset of action compared to other PDE5 inhibitors, making it suitable for patients experiencing delays in onset and peak of action with other medications like Viagra. Tadalafil (Cialis), Vardenafil (Levitra), and Alprostadil (Caverject) do not offer the same rapid onset of action as Avanafil, making them less suitable for addressing the specific needs of this patient.
3. A patient presents with a sudden onset of severe chest pain radiating to his back. His blood pressure is significantly higher in the right arm than in the left arm. Which of the following conditions is most likely?
- A. Acute myocardial infarction
- B. Pulmonary embolism
- C. Aortic dissection
- D. Pericarditis
Correct answer: C
Rationale: The correct answer is C, aortic dissection. Aortic dissection is characterized by sudden, severe chest pain that can radiate to the back. The discrepancy in blood pressure between the arms (higher in the right arm) is known as a 'pulse deficit' and is a classic finding in aortic dissection. This condition involves a tear in the inner layer of the aorta, leading to the abnormal flow of blood within the aortic wall. Acute myocardial infarction (choice A) presents with chest pain but typically does not cause discrepancies in blood pressure between arms. Pulmonary embolism (choice B) usually presents with chest pain and difficulty breathing but does not cause unequal blood pressures in the arms. Pericarditis (choice D) can cause chest pain exacerbated by breathing or lying down, but it does not typically lead to differences in blood pressure between arms.
4. A client has been admitted to the hospital with symptoms of Guillain-Barré syndrome. Which aspect of the client's condition would require priority monitoring?
- A. Monitoring oxygen saturation levels
- B. Monitoring for signs of respiratory compromise
- C. Monitoring for changes in consciousness
- D. Monitoring blood pressure closely
Correct answer: B
Rationale: In Guillain-Barré syndrome, respiratory muscle weakness can lead to respiratory compromise, making it crucial to prioritize monitoring for signs of respiratory distress. Monitoring oxygen saturation levels is important but is secondary to assessing for respiratory compromise in this condition. Changes in consciousness and monitoring blood pressure closely are not typically the priority in Guillain-Barré syndrome.
5. In discussing sex hormone production with the patient, the nurse should describe that testosterone is normally secreted in response to
- A. sexual arousal.
- B. stimulation by luteinizing hormone.
- C. ACTH release by the adrenal cortex.
- D. decreased cortisol levels.
Correct answer: B
Rationale: Testosterone production is regulated by the hypothalamic-pituitary-gonadal axis. Luteinizing hormone (LH) stimulates the Leydig cells in the testes to produce testosterone. Therefore, the correct answer is B. Choice A, 'sexual arousal,' is incorrect because testosterone secretion is not directly linked to arousal but rather to hormonal stimulation. Choice C, 'ACTH release by the adrenal cortex,' is incorrect as testosterone production is not primarily regulated by adrenocorticotropic hormone (ACTH). Choice D, 'decreased cortisol levels,' is also incorrect as cortisol and testosterone are regulated by separate endocrine pathways.
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