A Patient with Type 1 Diabetes Comes to the Clinic

A patient with type 1 diabetes comes to the clinic complaining of feeling nervous and clammy.He states that he took his insulin this morning but was late for work and did not eat breakfast.Which action should the clinician take first?

A) Check his blood sugar.
B) Have him drink 4 ounces of juice.
C) Call 911.
D) Ask him about his usual eating habits.