Aclient with a diagnosis of atrial fibrillation has just been placed on warfarin therapy. the registered nurse (rn) overhears a student nurse teaching the client about potential food-drug interactions. which statement made by the student nurse requires an intervention by the rn? 1. do you take any nutritional supplements? 2. you will need to monitor your intake of foods containing vitamin k. 3. you will not be able to eat green, leafy vegetables while taking this medication. 4. your blood will be tested at regular intervals.