ATI RN
ATI Pathophysiology
1. A male patient with erectile dysfunction has asked for a prescription for sildenafil (Viagra). Before giving this medication, the nurse should assess for which of the following conditions?
- A. History of peptic ulcer disease
- B. Use of nitrates
- C. Recent history of a stroke
- D. History of hypertension
Correct answer: B
Rationale: The correct answer is B: Use of nitrates. Sildenafil should not be used by patients taking nitrates due to the risk of severe hypotension. Nitrates can potentiate the hypotensive effects of sildenafil, leading to a significant drop in blood pressure. Assessing for the use of nitrates is crucial to avoid this potentially dangerous interaction. Choices A, C, and D are incorrect because they are not specifically contraindications for the use of sildenafil. While a history of hypertension should be considered, it is not as critical as the use of nitrates when prescribing sildenafil.
2. A nurse is completing an admission assessment for a client who reports vomiting and diarrhea for the past 3 days. Which of the following findings should the nurse expect?
- A. Blood pressure 144/82 mm Hg
- B. Urine specific gravity 1.03
- C. Neck vein distention
- D. Urine specific gravity 1.01
Correct answer: A
Rationale: In a client experiencing vomiting and diarrhea, the nurse should expect findings such as dehydration, which can lead to hypovolemia and subsequent increased heart rate and decreased blood pressure. A blood pressure of 144/82 mm Hg is indicative of possible dehydration in this client. Urine specific gravity is typically increased in dehydrated individuals, so choices B and D are incorrect. Neck vein distention is not a typical finding associated with vomiting and diarrhea; therefore, choice C is also incorrect.
3. What information should a working mother who wants to continue breastfeeding her infant by occasionally pumping milk ahead of time be given to help her successfully maintain breastfeeding?
- A. Breast milk can be refrigerated for up to 4 days
- B. Breast milk stored in a deep freezer can be kept for up to 12 months
- C. Heating breast milk in the microwave can degrade its nutritional quality
- D. Breast milk can be expressed either by hand or with an electric pump
Correct answer: D
Rationale: The correct answer is D. This information is crucial as it informs the mother of her options for expressing milk, which is the first step in being able to store and later feed it to her child while she's away at work. Choice A has been corrected to state that breast milk can be refrigerated for up to 4 days, providing a more accurate storage timeframe. Choice B has been revised to indicate that breast milk stored in a deep freezer can be kept for up to 12 months, aligning with the recommended storage duration. Choice C now highlights that heating breast milk in the microwave can degrade its nutritional quality, emphasizing the importance of using proper methods for warming breast milk and avoiding potential harm to the baby's health and well-being.
4. A 75-year-old male presents with chest pain on exertion. The chest pain is most likely due to hypoxic injury secondary to:
- A. Malnutrition
- B. Free radicals
- C. Ischemia
- D. Chemical toxicity
Correct answer: C
Rationale: The correct answer is C: Ischemia. In this scenario, the 75-year-old male experiences chest pain on exertion, which is indicative of angina. Angina is primarily caused by reduced blood flow to the heart muscle, leading to hypoxic injury. This condition is known as ischemia. Options A, B, and D are incorrect. Malnutrition does not typically cause chest pain related to exertion. Free radicals and chemical toxicity are not common causes of chest pain in the context described. Therefore, the most likely cause of chest pain in this case is ischemia due to reduced blood flow.
5. A client with HIV-1 starting therapy with ritonavir and zidovudine asks why both medications are necessary. What explanation should the nurse provide?
- A. Taking two medications ensures a faster recovery.
- B. The medications work best together to improve your immune system.
- C. Taking the 2 medications together keeps you from becoming resistant to either of them.
- D. These medications target different parts of the virus.
Correct answer: C
Rationale: The correct answer is C because taking two medications together helps prevent the development of drug resistance in HIV treatment. Choice A is incorrect because the primary goal of combination therapy is not necessarily a faster recovery. Choice B is incorrect as the main purpose of combining medications in HIV treatment is to prevent resistance rather than improving the immune system. Choice D is incorrect because while it is true that the medications may target different parts of the virus, the main reason for using both together is to prevent resistance.
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