Blood sugar 15mmol / L how many units of insulin, the specific dose should be decided by the doctor. Blood glucose 15mmol / L whether fasting or 2 hours after meals are high blood glucose, if combined with typical symptoms of diabetes can be diagnosed as diabetes, whether the need to use insulin or the use of the dose is recommended under the guidance of a physician. Blood sugar 15mmol / L how much insulin, need to distinguish between the type of diabetes and the patient’s physical specifics, and consider the type of insulin, whether there are complications and other factors. The specific amount of insulin should be guided by the doctor, not adjusted arbitrarily. Blood sugar 15mmol / L need comprehensive treatment, with daily diet, exercise and other ways, we recommend that patients go to the regular hospital in time.