A 32-year-old male factory worker is brought to the emergency department after becoming ill at work. On admission, his blood glucose is 468 mg/dL (25.97 mmol/L) with moderate ketones. Intravenous insulin and fluids are administered. He is told his diagnosis of diabetes and is taught to administer insulin and monitor blood glucose levels. On discharge, his blood glucose level is 164 mg/dL (9.1 mmol/L). He is prescribed two injections daily of premixed 70/30 insulin and told to make an appointment for further treatment as soon as possible.

In addition to developing a treatment plan, which of the following is the most appropriate first step in the management of this patient?

A. Assess how he is coping with the news that he has diabetes.

B. Provide detailed information about diabetes.

C. Refer him for a dilated eye examination.

D. Check his urine for albumin.