MRCP2-1087

MRCP2-1087

A 23 year-old man presents with a six week history of increasing thirst and frequency of urinating. The GP suspects diabetes and performs two fasting blood tests on separate days which reveal blood glucose results of 8.9 mmol/l and 9.5 mmol/l. Urinalysis does not detect any ketones or protein in the urine. The patient’s mother had a diagnosis as type 1 diabetes at the age of 21 and his maternal grandfather and aunt also have type 1 diabetes. Due to the family history, the patient’s c-peptide is measured and found to be consistently high on two occasions.

What would be the most appropriate initial treatment for managing this condition, given the likely diagnosis?