The nurse teaches the patient taking warfarin (Coumadin) to minimize foods high in vitamin K including what type of food?
A) Eggs
B) Dairy products
C) Citrus fruits
D) Green leafy vegetables
D
Feedback:
Injectable vitamin K is used to reverse the effects of warfarin. Vitamin K is responsible for promoting the liver synthesis of several clotting factors. When these pathways have been inhibited by warfarin, clotting time is increased. If an increased level of vitamin K is provided, more of these factors are produced, and the clotting time can be brought back within a normal range. Green leafy vegetables are high in vitamin K and should be avoided or minimized in the diet to prevent reversal of warfarin effects. The other food options are not high in vitamin K.
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