Ringer’s solution is clinically known as compound sodium chloride injection, also known as Ringer’s solution, invented by British biologist Ringer. Its main components are small amounts of potassium chloride, calcium chloride and saline, and it is mostly used clinically for rehydration and volume expansion treatment. Ringer’s solution is commonly used in patients with symptoms of shock during surgery and after burns, which can quickly restore the patient’s body fluids to normal and effectively maintain blood volume. It is also suitable for correcting all types of dehydration, and can be used for hypotonic, isotonic and hypertonic dehydration. It can also provide better relief for hyperglycemic hypertonic state that occurs in diabetic patients. Since Ringer’s solution also contains sodium ions, chloride ions and potassium ions, it can correct acid-base balance and maintain the balance of water and electrolytes. It also replenishes calcium ions and potassium ions, relieving patients of nausea, vomiting, and weakness. Sodium lactate Ringer’s solution, i.e. Ringer’s solution after adding a small amount of sodium lactate, is often used in the operating room for dehydrated patients with acidosis or a tendency to acidosis. Ringer’s solution generally does not cause adverse reactions, but if it is not operated properly, such as dripping too fast, it can cause an increase in blood pressure, leading to dizziness, headache, accelerated heart rate, and in severe cases, symptoms such as respiratory distress may occur. It is important to pay attention to the principle of asepsis during infusion to prevent retrograde infection and aggravation of the disease. Pay attention to keeping warm during infusion and get up slowly after infusion to avoid postural hypotension, which may lead to unstable standing and fall. Patients suffering from renal failure, severe heart failure and other diseases should refrain from using Ringer’s fluid as much as possible to avoid aggravating the burden on the kidneys and heart.