Final answer:
Statement A requires additional teaching about warfarin because patients should keep a consistent intake of vitamin K; significant dietary changes should be discussed with a healthcare provider to avoid affecting the medication's effectiveness.
Step-by-step explanation:
I will increase the intake of green, leafy vegetables for a more healthful diet." This statement indicates additional teaching is required about the medication warfarin.
Warfarin is an anticoagulant that is used to prevent blood clots. It works by inhibiting the vitamin K-dependent clotting factors in the blood. Green, leafy vegetables are high in vitamin K, which can interfere with the effectiveness of warfarin. Therefore, patients on warfarin should maintain a consistent, moderate intake of vitamin K and should not make significant changes to their diet without consulting their healthcare provider.
Vitamin C does not have a significant effect on warfarin and does not need to be restricted. Diabetic diets focusing on sugar restriction and increased protein intake for kidney protection do not directly interact with warfarin therapy, so statements B), C), and D) do not indicate a need for additional teaching.
It's essential to make healthy food choices and understand dietary requirements when taking medications such as warfarin. Patients should also consider pharmacogenomics, which can assist in personalizing medication dosages based on individual genetic profiles, potentially reducing the risk of overdose and adverse effects.