Treatment of hyperkalemia with insulin involves intravenous glucose injection with a certain amount of insulin, which can promote the transfer of potassium ions into the cells. The normal value of blood potassium is 3.5-5.5 mmol/L. Hyperkalemia occurs when the blood potassium concentration is higher than 5.5 mmol/L. Hyperkalemia affects both neuromuscular excitability and electrophysiological stability of the heart, and it requires active rescue treatment. The treatment of hyperkalemia mainly includes the following points: 1. Intravenous infusion of glucose solution, while adding a certain amount of insulin, can promote the transfer of potassium ions to the cells and reduce blood potassium.2. Sodium bicarbonate injection can be given intravenously. Intravenous sodium bicarbonate can promote the exchange of hydrogen and potassium, and promote the transfer of potassium ions to the cells, and reduce the blood potassium.3. Intravenous calcium gluconate can counteract the potassium ion’s Toxic effect of potassium ions on the myocardium. 4. Potassium-containing foods or drugs should be reduced as much as possible, and potassium-excreting diuretics should be applied when necessary.