A Client Who Is Taking Coumadin Tells the Nurse That

A client who is taking Coumadin tells the nurse that she has started taking a vitamin E supplement as she has heard that this will help decrease the likelihood of her developing cancer. Which of the following would be the most appropriate response by the nurse?

A) "Vitamin E supplements are unnecessary, so I don't recommend you use this supplement."
B) "Vitamin E can interfere with the actions of vitamin K and enhance the effects of Coumadin ."
C) "Vitamin E supplements can interfere with the absorption of iron and create additional health problems."
D) "Vitamin E must be used cautiously, as it is easy to experience a toxicity of this nutrient."