A patient who has atrial fibrillation is taking warfarin and has an INR of 2.5.The patient reports having frequent headaches and asks for an over-the-counter pain reliever.The nurse will recommend which medication?

Ibuprofen

Naproxen

Acetaminophen

Aspirin.

Answer and Explanation

The Correct Answer is C

The patient reports having frequent headaches and asks for an over-the-counter pain reliever. The nurse will recommend acetaminophen, which is the safest pain reliever while taking warfarin. Acetaminophen does not interfere with the anticoagulant effect of warfarin and does not increase the risk of bleeding.

Choice A is wrong because ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can enhance the anticoagulant effect of warfarin and increase the likelihood of harmful bleeding.

NSAIDs can also cause stomach ulcers, kidney damage, and high blood pressure.

Choice B is wrong because naproxen is another NSAID that has the same risks as ibuprofen.

Naproxen should be avoided by patients taking warfarin.

Choice D is wrong because aspirin is also an anticoagulant that can increase the risk of bleeding when taken with warfarin.

Aspirin can also cause stomach irritation, ulcers, and allergic reactions.

The normal range for INR is 2 to 3 for patients with atrial fibrillation who are taking warfarin.

An INR of 2.5 indicates that the patient’s blood is taking longer to clot than normal, but not too long.

The patient should have regular blood tests to monitor their INR and adjust their warfarin dose if needed.

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Correct Answer is B

Explanation

This statement indicates that the patient understands that rivaroxaban (Xarelto) is an anticoagulant that can increase the risk of bleeding and bruising.The patient should avoid activities that may cause injury, such as contact sports, sharp objects, or falls.

Choice A is wrong because aspirin is also an antiplatelet drug that can further increase the risk of bleeding when taken with rivaroxaban.The patient should not take aspirin or any other nonsteroidal anti-inflammatory drugs (NSAIDs) without consulting the prescriber.

Choice C is wrong because rivaroxaban can be taken with or without food.The patient does not need to take the medication with food to prevent stomach upset or absorption problems.

Choice D is wrong because rivaroxaban should be taken as prescribed and not stopped abruptly without consulting the prescriber.Stopping the medication can increase the risk of blood clots and stroke.The patient should not stop taking the medication even if they feel better or have no symptoms.

A. Warfarin B. Clopidogrel C. Argatroban D. Alteplase.

Correct Answer is C

Explanation

This is because argatroban is a direct thrombin inhibitor that can be used as an alternative anticoagulant for patients with heparin-induced thrombocytopenia (HIT).HIT is an immune-mediated disorder that occurs when antibodies form against heparin and platelet factor 4, leading to platelet activation and thrombosis.The diagnosis of HIT is based on clinical criteria and laboratory tests.

Choice A is wrong because warfarin is a vitamin K antagonist that interferes with the synthesis of clotting factors II, VII, IX, and X.Warfarin is contraindicated in patients with HIT because it can worsen the thrombotic complications and cause skin necrosis.Warfarin should only be started after the platelet count has recovered and the patient is adequately anticoagulated with a non-heparin agent.

Choice B is wrong because clopidogrel is an antiplatelet agent that inhibits the ADP receptor on platelets, preventing their aggregation.Clopidogrel is not effective for the treatment of HIT, as it does not target the underlying mechanism of thrombin generation.Clopidogrel may also increase the risk of bleeding in patients with HIT.

Choice D is wrong because alteplase is a fibrinolytic agent that converts plasminogen to plasmin, which breaks down fibrin clots.Alteplase is not indicated for the treatment of HIT, as it does not prevent further thrombosis and may cause severe bleeding complications.Alteplase may be used as a last resort for life-threatening thrombosis in patients with HIT who do not respond to other therapies.

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A patient who has atrial fibrillation is taking warfarin and has an INR of 2.5.The patient reports having frequent headaches and asks for an over-the-counter pain reliever.The nurse will recommend which medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient has been prescribed rivaroxaban (Xarelto) for deep vein thrombosis (DVT). Which statement by the patient indicates understanding of medication teaching?

Correct Answer is B

Explanation

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Correct Answer is C

Explanation

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