A nurse is preparing to administer warfarin to a client. Which of the following information should the nurse recognize prior to administering the medication?
The antidote for warfarin is protamine.
The client should be observed for manifestations of hemorrhage.
The client's aPTT should be monitored.
Warfarin can be administered along with NSAIDs.
The Correct Answer is B
Choice A reason: The statement that the antidote for warfarin is protamine is incorrect. The primary antidote for warfarin is Vitamin K, and in cases of significant bleeding, prothrombin complex concentrate (PCC) or fresh frozen plasma (FFP) may be used¹². Protamine is used as an antidote for heparin, not warfarin¹.
Choice B reason: Observing the client for manifestations of hemorrhage is a critical nursing action when administering warfarin. Warfarin is an anticoagulant, and one of the major risks associated with its use is bleeding. The nurse should monitor for signs such as unusual bruising, petechiae, hematuria, tarry stools, or any other indications of internal or external bleeding⁷⁸.
Choice C reason: Monitoring the client's aPTT (activated partial thromboplastin time) is not typically associated with warfarin therapy. Warfarin's effect is monitored through the prothrombin time (PT) and the International Normalized Ratio (INR), not aPTT, which is more commonly used to monitor heparin therapy⁴⁵.
Choice D reason: Warfarin should not be administered along with NSAIDs without careful consideration and monitoring due to the increased risk of bleeding. NSAIDs can affect platelet function and gastrointestinal mucosa, leading to an elevated risk of gastrointestinal bleeding when taken with warfarin¹¹¹².
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: The statement that the antidote for warfarin is protamine is incorrect. The primary antidote for warfarin is Vitamin K, and in cases of significant bleeding, prothrombin complex concentrate (PCC) or fresh frozen plasma (FFP) may be used¹². Protamine is used as an antidote for heparin, not warfarin¹.
Choice B reason: Observing the client for manifestations of hemorrhage is a critical nursing action when administering warfarin. Warfarin is an anticoagulant, and one of the major risks associated with its use is bleeding. The nurse should monitor for signs such as unusual bruising, petechiae, hematuria, tarry stools, or any other indications of internal or external bleeding⁷⁸.
Choice C reason: Monitoring the client's aPTT (activated partial thromboplastin time) is not typically associated with warfarin therapy. Warfarin's effect is monitored through the prothrombin time (PT) and the International Normalized Ratio (INR), not aPTT, which is more commonly used to monitor heparin therapy⁴⁵.
Choice D reason: Warfarin should not be administered along with NSAIDs without careful consideration and monitoring due to the increased risk of bleeding. NSAIDs can affect platelet function and gastrointestinal mucosa, leading to an elevated risk of gastrointestinal bleeding when taken with warfarin¹¹¹².
Correct Answer is C
Explanation
Choice A reason : White beans do not have a significant interaction with warfarin. They are a good source of protein and fiber and can be included in the diet unless otherwise contraindicated.
Choice B reason : Cantaloupe does not interact significantly with warfarin and can be consumed as part of a balanced diet. It is rich in vitamins and hydration.
Choice C reason : Cabbage contains vitamin K, which can interfere with the effectiveness of warfarin. Vitamin K is essential for blood clotting, and warfarin works by inhibiting the effects of this vitamin. Therefore, patients on warfarin are advised to maintain a consistent intake of vitamin K and avoid sudden increases in foods high in this nutrient.
Choice D reason : Green beans have a moderate amount of vitamin K but are not typically restricted for patients on warfarin. It is important for patients to maintain a consistent intake of vitamin K; thus, they should not make significant changes to their diet without consulting their healthcare provider.
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