Ketosis and diabetic ketoacidosis, which must be treated promptly in hospital. Diabetic ketoacidosis, need to be actively given treatment. Specific treatment measures are as follows: First, rehydration, diabetic ketoacidosis with varying degrees of dehydration, only after effective tissue perfusion and improved recovery, the biological effect of insulin can be brought into play. Second, small-dose insulin therapy, adjust the insulin dose according to the high or low blood sugar, and for those who cannot eat, enter glucose daily. Supplemental glucose can make cellular anabolic and facilitate the correction of ketosis. Third, correct acidosis, diabetic ketoacidosis can make the myocardial contraction weaken, reduce the beat volume, dilate the peripheral blood vessels, make the blood pressure drop, and inhibit the respiratory center and central nervous system, so the acidosis must be corrected in time. Fourth, correction of electrolyte disorders, sodium and chloride supplementation can be achieved by supplementing saline. Therefore, to correct electrolyte disorders in patients with this disease, the main focus is on potassium supplementation. Fifth, remove the causative factors, such as the use of antibiotics to control infection. Sixth, to deal with complications, it is necessary to prevent and control complications early, especially shock, heart rhythm disorders, heart failure, pulmonary edema, cerebral edema, acute renal failure, etc. The dynamics of the disease must be closely observed, monitoring blood gas, electrolytes, blood glucose, electrocardiogram, etc.