Regardless of what pushed you into the diabetic coma, you will be admitted to the ICU. You will get specific treatments for any other major medical issues that you have along with HONK.
These are the most common things to expect in the hospital when hospitalized for a diabetic coma:
A CT scan of the head
A chest x-ray
An EKG
Multiple IV lines with lots of IV fluids
Frequent blood tests
IV insulin
A ventilator if you are not awake enough to support your breathing
A heart monitor