ATI RN
ATI Pharmacology Proctored Exam 2019
1. When teaching a client with a new prescription for Clopidogrel, which laboratory value should the nurse monitor to assess for potential adverse effects?
- A. White blood cell count
- B. Platelet count
- C. Hemoglobin
- D. Blood glucose
Correct answer: B
Rationale: Clopidogrel is an antiplatelet medication that works by reducing the formation of blood clots. Therefore, the nurse should monitor the client's platelet count to assess for potential bleeding complications. A decrease in platelet count could indicate a risk of bleeding, which is an adverse effect associated with Clopidogrel therapy. Monitoring other laboratory values like white blood cell count, hemoglobin, and blood glucose is important for assessing overall health status but is not directly related to the potential adverse effects of Clopidogrel.
2. Why has an ACE inhibitor been prescribed following an MI?
- A. “This medication will lower your potassium level.”
- B. “ACE inhibitors have been found to reduce mortality following MI.”
- C. “ACE inhibitors are always prescribed with a beta blocker and calcium channel blocker following an MI.”
- D. “This medication will treat your hypotension.”
Correct answer: B
Rationale: Following a myocardial infarction (MI), ACE inhibitors are commonly prescribed due to their proven benefit in reducing mortality and improving outcomes post-MI. These medications help by decreasing the workload of the heart, preventing remodeling of the heart chambers, and improving survival rates. While ACE inhibitors may have effects on potassium levels, the primary reason for their prescription post-MI is their mortality-reducing properties.
3. A client is being taught about a new prescription for Escitalopram to treat generalized anxiety disorder. Which statement by the client indicates understanding of the teaching?
- A. I should take the medication with food.
- B. I will monitor my blood sugar levels while taking this medication.
- C. I need to discontinue this medication slowly.
- D. I can crush this medication before swallowing.
Correct answer: C
Rationale: The correct answer is C. When discontinuing Escitalopram, the client should taper the medication slowly according to a prescribed dosing schedule to reduce the risk of withdrawal syndrome. Abruptly stopping the medication can lead to withdrawal symptoms, so it is important to follow the healthcare provider's instructions for gradual discontinuation. Choices A, B, and D are incorrect because Escitalopram should not necessarily be taken with food, there is no direct correlation with blood sugar levels, and the medication should not be crushed before swallowing.
4. A healthcare provider is providing discharge instructions to a client who is prescribed Warfarin. Which of the following dietary instructions should the provider include?
- A. Increase your intake of leafy green vegetables.
- B. Avoid foods high in vitamin K.
- C. Increase your intake of dairy products.
- D. Avoid foods high in iron.
Correct answer: B
Rationale: The correct answer is to avoid foods high in vitamin K. Vitamin K can interfere with the effectiveness of Warfarin by counteracting its anticoagulant effects. Foods high in vitamin K, such as leafy green vegetables, should be limited in the diet of individuals taking Warfarin to maintain a consistent level of the medication's effectiveness. Choices A, C, and D are incorrect as increasing intake of leafy green vegetables (choice A) and dairy products (choice C) may increase the intake of vitamin K, which is not recommended, and avoiding foods high in iron (choice D) is not directly related to Warfarin therapy.
5. A client with thrombophlebitis receiving heparin by continuous IV infusion asks the nurse how long it will take for the heparin to dissolve the clot. Which of the following responses should the nurse give?
- A. It usually takes heparin at least 2 to 3 days to reach a therapeutic blood level.
- B. A pharmacist is the person to answer that question.
- C. Heparin does not dissolve clots. It stops new clots from forming.
- D. The oral medication you will take after this IV will dissolve the clot.
Correct answer: C
Rationale: The correct response is C. Heparin does not dissolve clots; it prevents new clots from forming. Heparin works by inhibiting the formation of new clots and the extension of existing clots, rather than directly dissolving them. The client should be informed that the purpose of heparin therapy is to prevent the clot from getting larger and to reduce the risk of new clots forming. Choices A, B, and D are incorrect. Choice A talks about reaching a therapeutic blood level of heparin, which is not related to clot dissolution. Choice B deflects the question to a pharmacist without providing relevant information. Choice D inaccurately suggests that an oral medication will dissolve the clot, which is not the mechanism of action for heparin.
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