A nurse is teaching a patient who has been prescribed warfarin (Coumadin) for atrial fibrillation. Which statement by the patient indicates understanding of the medication teaching?
- "I should avoid eating green leafy vegetables while taking this medication."
- "I will maintain a consistent intake of foods containing vitamin K."
- "I can take aspirin for headaches since it's over-the-counter."
- "I should massage any bruised areas to increase circulation."