Re: blood glucose over 200 will not come down even on insulin
This happens to me sometimes when I get sick, especially with respiratory infections, colds, etc. Seems my BG just wants to stay high even though my diet and insulin have not changed.
Perhaps you have another illness? We don't have much to go on, are you recently starting insulin? Or are you long-term diabetic? What forms of insulin do you take? Any other drugs, like metformin? How's your diet and exercise?