The Nurse Has Drawn Up Regular and NPH Insulin for Administration

The nurse has drawn up Regular and NPH insulin for administration to her diabetic patient.When the nurse enters the room,the patient has gone to radiology for a chest radiograph and will return in 20 minutes.What should the nurse do with the medication?

A) Put the medication in the refrigerator until he returns
B) Put the medication in the patient's medication box until he returns
C) Keep the syringe in her pocket until he returns
D) Discard the medication and withdraw more when he returns