<qa>  What is the cause of diabetes mellitus with 2 episodes of ketoacidos- Patient has a history of significant cardiovascular, neurological, endocrine, gastrointestinal, respiratory, or inflammatory illness including recent myocardial infarction within 6 monthsor stroke; hypertension requiring 2 medications for adequate control; diabetes mellitus with 2 episodes of ketoacidosis in the preceding 12 months; or chronic obstructive pulmonary disease COPD requiring 2 hospitalizations in the preceding 12 months. 