ATI LPN
LPN Pharmacology Questions
1. A client has a new prescription for lisinopril. Which of the following instructions should the nurse include?
- A. Monitor blood pressure daily.
- B. Take the medication with food.
- C. Increase intake of potassium-rich foods.
- D. Avoid consuming grapefruit juice.
Correct answer: A
Rationale: The correct answer is to instruct the client to monitor their blood pressure daily. Lisinopril is known to cause hypotension, so monitoring blood pressure regularly is essential to detect any potential issues early on. Choice B is incorrect as lisinopril is usually taken on an empty stomach. Choice C is incorrect as lisinopril can increase potassium levels, so additional intake of potassium-rich foods may lead to hyperkalemia. Choice D is incorrect because grapefruit juice can interact with lisinopril, leading to adverse effects.
2. The client with Raynaud's phenomenon is being taught by the nurse about preventing episodes. Which instruction should the nurse reinforce?
- A. Wear gloves in cold weather.
- B. Avoid caffeine and chocolate.
- C. Increase intake of vitamin C.
- D. Use a heating pad for warmth.
Correct answer: A
Rationale: The correct answer is A: 'Wear gloves in cold weather.' Wearing gloves in cold weather is essential for preventing vasoconstriction and subsequent episodes of Raynaud's phenomenon. Cold temperatures can trigger vasospasms in individuals with Raynaud's, and wearing gloves helps maintain warmth and prevent the constriction of blood vessels in the extremities, reducing the likelihood of an episode. Choices B, C, and D are incorrect because while avoiding caffeine and chocolate, increasing vitamin C intake, and using a heating pad for warmth can be beneficial for overall health, they are not specifically targeted at preventing Raynaud's phenomenon episodes triggered by cold weather.
3. A client has a new prescription for levothyroxine. Which of the following instructions should the nurse include?
- A. Take the medication on an empty stomach.
- B. Take the medication with food.
- C. Take the medication at bedtime.
- D. Take the medication with an antacid.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication on an empty stomach.' Levothyroxine should be taken on an empty stomach to ensure optimal absorption. Food, especially high-fiber foods, can interfere with the absorption of levothyroxine. Taking it with an antacid or at bedtime may also affect its absorption. Instructing the client to take the medication on an empty stomach will help maintain consistent blood levels of levothyroxine. Choice B is incorrect as taking levothyroxine with food can reduce its absorption. Choice C is incorrect because taking levothyroxine at bedtime may lead to inconsistent blood levels due to food intake during the day. Choice D is incorrect as antacids can interfere with the absorption of levothyroxine.
4. The client is receiving heparin therapy for deep vein thrombosis (DVT). Which lab test should be monitored to evaluate the effectiveness of heparin?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Fibrinogen levels
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the appropriate lab test to monitor the therapeutic effectiveness of heparin therapy. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure the client is within the therapeutic range to prevent clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, a different anticoagulant that affects the extrinsic pathway of the coagulation cascade. Fibrinogen levels are not specific to monitoring heparin therapy.
5. A client has a new prescription for nitroglycerin. Which of the following instructions should the nurse include in the discharge teaching?
- A. Store the medication in a cool, dark place.
- B. Take the medication at bedtime.
- C. Take the medication on an empty stomach.
- D. Take the medication at the first sign of chest pain.
Correct answer: D
Rationale: The correct instruction to include in the discharge teaching for a client with a new prescription for nitroglycerin is to take the medication at the first sign of chest pain. Nitroglycerin is a vasodilator that helps relax blood vessels, increasing blood flow to the heart muscle and reducing the workload of the heart. Taking it at the onset of chest pain helps alleviate angina symptoms quickly and effectively. Storing the medication in a cool, dark place (Choice A) is not a critical instruction for this medication. Taking the medication at bedtime (Choice B) or on an empty stomach (Choice C) is not relevant to the administration of nitroglycerin for angina relief.
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