Patients with ketoacidosis need to seek immediate medical attention and doctors will treat them according to their blood glucose levels. For example, when the patient’s blood glucose level is higher than 13.9 mmol/L, 0.9% sodium chloride injection combined with insulin rehydration may be used to control blood glucose and the need for potassium chloride or alkaline drug supplementation will be evaluated according to blood potassium levels, urine output, and the degree of acidosis. When the patient’s blood glucose level drops below 13.9 mmol/L, treatment with 5% dextrose injection combined with insulin will be administered. During the process of rehydration and ketone body removal therapy with either fluid, the patient’s blood glucose level is repeatedly tested, and the frequency of testing is determined by the rate of change in the patient’s blood glucose level. When rehydration therapy is performed with glucose, on the one hand, it can replenish energy for the body; on the other hand, it can also prevent the blood glucose from dropping too fast.