A patient has been admitted to

the emergency department. The patient is in grave condition, unconscious, and

exhibits adynamia. The skin is dry, the eyes are sunken, and the face is

cyanotic. He presents with tachycardia and the smell of acetone from the mouth.

Test results show blood glucose 20.1 micromoles/L (normal range 3.3-5.5

micromoles/L), and urine glucose 3.5% (normal: 0). What is the most probable

diagnosis?