Patient M., 24 years old, diagnosed with type 1 diabetes 8 months ago. He has a negative attitude to insulin therapy, misses injections, does not control glycemia, and does not follow a diet. Deterioration of well-being within 10 days, when it appeared weakness, severe thirst, polyuria. Objectively: A state of moderate severity. Answers questions late, in monosyllables. The skin is dry. Smell of acetone in exhaled air. There are no wheezing in the lungs. HELL 100/70 mm Hg Pulse 90 / min. Question : 1. Make a preliminary diagnosis.2. Make a differential diagnosis.3. Prescribe treatment.