Patients with high blood glucose should not be given glucose intravenously. Diabetes is a chronic metabolic disease that is dominated by elevated blood glucose. Glucose drip is not recommended for diabetic patients to avoid causing a significant increase in blood glucose and even inducing diabetic ketosis or diabetic ketoacidosis. Diabetic patients need to pay attention to the following points if they are on an IV glucose drip: 1. When diabetic patients cannot eat, they need to provide the carbohydrates needed by the body through IV glucose infusion. Therefore, when infusing glucose solution, the ratio of 2-4 grams of sugar plus 1 unit of insulin needs to be added to insulin intravenously to avoid causing further elevation of blood glucose and at the same time promote the effective utilization of glucose. 2. Drugs that can be configured with saline as the solvents should be prepared with saline as much as possible. If it is necessary to use glucose solution in order to prepare the drug, you can also add insulin intravenously at the same time to prevent blood glucose from rising.