The Client Has Received a Dose of Nitroprusside Sodium to Treat

The client has received a dose of nitroprusside sodium to treat hypertensive crisis. She complains to the nurse of experiencing abdominal pain and nausea. The highest priority action on the part of the nurse is to call the physician because this is ________ the medication.

A) an expected side effect of the
B) an adverse reaction to
C) evidence of a toxic level of the
D) evidence of an anaphylactic reaction to