A Patient Is Admitted with Extreme Fatigue,vomiting,and Headache

A patient is admitted with extreme fatigue,vomiting,and headache.This patient has type 1 diabetes that has been well controlled with an insulin pump.The patient states,"I know it could not be my diabetes because my pump gives me 24-hour control." Which reply would be the nurse's best response?

A) "You know a lot about your pump, and you are correct."
B) "You're right. This is probably a virus."
C) "We'll get an abdominal CT and see if your pancreas is inflamed."
D) "We'll check your serum blood glucose and ketones."