A Patient Tells You That She Is Allergic to the Drug

A patient tells you that she is allergic to the drug her health care provider just prescribed.What is your best first response or action?

A) Ask her to describe the allergic response she had previously to this drug.
B) Ask her whether she received the drug she was allergic to by mouth or by injection.
C) Thank her for the information and ask the health care provider to prescribe something else.
D) Tell her that the health care provider will also prescribe an antidote that will prevent an allergic response to the prescribed drug.