INS and type 1 diabetes mellitus: According to specific research, DKA can be present at the time of type 1 diabetes onset in 25 to 30% of cases and in 4 to 29% of young people with type 2 diabetes mellitus, and its features include hyperglycemia, metabolic acidosis, and ketosis with its triggering factors commonly being infections, newly discovered diabetes, and failure to start insulin therapy.