a client with atrial fibrillation is prescribed warfarin coumadin the nurse should reinforce which dietary instruction
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Nursing Elites

ATI LPN

Pharmacology for LPN

1. A client with atrial fibrillation is prescribed warfarin (Coumadin). The nurse should reinforce which dietary instruction?

Correct answer: A

Rationale: The correct answer is to avoid foods high in vitamin K. Clients taking warfarin (Coumadin) should maintain a consistent intake of vitamin K to keep the medication's effectiveness stable. Foods high in vitamin K, such as leafy greens, can interfere with the anticoagulant effects of warfarin. Therefore, it is crucial for clients to avoid these foods to ensure the therapeutic effects of warfarin. Choices B, C, and D are incorrect because increasing dairy products, limiting fiber intake, or increasing protein intake do not directly impact the effectiveness of warfarin therapy and are not necessary dietary modifications for clients on this medication.

2. The healthcare provider is teaching a client with hypertension about lifestyle modifications. Which recommendation should the healthcare provider include?

Correct answer: A

Rationale: Limiting alcohol intake is an essential lifestyle modification recommended for managing hypertension. Excessive alcohol consumption can raise blood pressure, so limiting it to one drink per day is beneficial in controlling hypertension. Alcohol moderation is a key part of a heart-healthy lifestyle for individuals with high blood pressure. Choice B is incorrect because increasing sodium intake can actually worsen hypertension by retaining water and increasing blood pressure. Choice C is incorrect because while exercise is important for overall health, moderate-intensity exercise is recommended for individuals with hypertension to avoid excessive strain on the heart. Choice D is incorrect because high potassium foods like bananas are actually beneficial for individuals with hypertension as they can help lower blood pressure.

3. A client has a new prescription for lisinopril. Which of the following instructions should the nurse include?

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.

4. The client with a new prescription for warfarin (Coumadin) is receiving teaching from the LPN/LVN. Which statement by the client indicates an understanding of the medication?

Correct answer: A

Rationale: Clients prescribed with warfarin (Coumadin) need to maintain a consistent intake of vitamin K and avoid sudden increases in foods rich in vitamin K as it can interfere with the effectiveness of the medication. Choice A, 'I will avoid eating foods high in vitamin K, like spinach and broccoli,' is the correct statement indicating an understanding of the medication. This choice demonstrates knowledge of the importance of consistent vitamin K intake to prevent fluctuations in warfarin's effectiveness. Choices B, C, and D are incorrect. Choice B suggests a substitution that is not advised without consulting a healthcare provider. Choice C is incorrect as stopping warfarin suddenly can lead to serious health risks. Choice D is unsafe and incorrect since doubling the dose is not the correct action if a dose is missed.

5. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?

Correct answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.

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