Blood glucose between 15-20mmol/l insulin playing how much dose, need to clarify the fasting blood glucose value between 15-20mmol/l or postprandial random blood glucose between 15-20mmol/l, according to the patient’s diet, body weight, insulin type and blood glucose changes and other related factors to determine the amount of insulin, because the current conditions have not yet been clarified, it is difficult to judge the insulin dosage. Blood glucose between 15～20mmol/l is quite high, no matter it is fasting blood glucose or random blood glucose. If the blood glucose stays high for a long time, it is easy to be combined with acute complications such as diabetic ketoacidosis, so it is recommended to control the blood glucose under the guidance of the doctor. If you have high blood glucose, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor to standardize the use of medication, do not use private, so as not to cause adverse drug reactions.