A client receiving warfarin (Coumadin) therapy is also using the herb feverfew. For what does the nurse assesses?
1. Renal dysfunction
2. Increased coagulation
3. Liver toxicity
4. Increased bleeding potential
Correct Answer: 4
Rationale 1: The combination of Coumadin and feverfew does not cause renal dysfunction.
Rationale 2: The combination of Coumadin and feverfew does not cause increased coagulation.
Rationale 3: The combination of Coumadin and feverfew does not cause liver toxicity.
Rationale 4: Feverfew interacts with aspirin, heparin, NSAIDs, and warfarin and can cause increased bleeding.
Global Rationale: Feverfew interacts with aspirin, heparin, NSAIDs, and warfarin and can cause increased bleeding. The combination of Coumadin and feverfew does not cause renal dysfunction, increase coagulation, or cause liver toxicity.
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