What is the function of glucose and sodium chloride injection?
Nov 25, 2025
Source: Cainiu Health
Dr. Wang Lei
Introduction
Under normal circumstances, glucose and sodium chloride injection, as a commonly used clinical fluid supplement, has core functions including energy supplementation, fluid and electrolyte replacement, serving as a solvent for medications, correction of hypoglycemia, and maintenance of fluid balance. The dosage of this injection should be adjusted according to factors such as the patient's age, body weight, and medical condition, and must be administered by qualified healthcare professionals.
Generally, glucose-sodium chloride injection is a commonly used clinical fluid supplement, and its main functions include energy supplementation, rehydration and electrolyte replacement, serving as a drug solvent, correction of hypoglycemia, and maintenance of fluid balance. The details are as follows:
1. Energy supplementation: Glucose in the injection can directly participate in body metabolism and provide energy. It is suitable for patients with inadequate food intake or digestive absorption disorders, as well as individuals who have excessively consumed energy due to intense physical activity or high fever. It can rapidly alleviate symptoms of energy deficiency such as fatigue and dizziness.
2. Rehydration and electrolyte replacement: Sodium chloride is an essential electrolyte for maintaining normal physiological functions. This injection can simultaneously replenish water, sodium ions, and chloride ions. It effectively improves symptoms such as thirst, reduced urine output, and electrolyte imbalances caused by dehydration and electrolyte loss due to vomiting, diarrhea, or excessive sweating.
3. Use as a drug solvent: The solution is chemically stable and compatible with many drugs, making it a common diluent for intravenous drug administration in clinical practice. Antibiotics, vitamins, and electrolyte preparations often need to be diluted with this solution before intravenous infusion, which ensures drug stability and allows control over the infusion rate, thereby ensuring medication safety.
4. Correction of hypoglycemia: When patients exhibit symptoms of hypoglycemia such as palpitations, cold sweats, or impaired consciousness, the glucose in the injection can quickly raise blood glucose levels and relieve discomfort. It is particularly useful for diabetic patients who experience excessive blood sugar lowering during treatment, or non-diabetic individuals suffering from hypoglycemia due to fasting or illness.
5. Maintenance of fluid balance: During pre- and post-operative periods, recovery from trauma, or in diseases causing fluid imbalance, the infusion volume of this solution can be adjusted according to the patient's degree of fluid loss. This helps maintain stable intravascular volume and ensures adequate blood perfusion to vital organs such as the heart and kidneys.
The dosage of this injection should be adjusted based on factors such as the patient’s age, weight, and medical condition, and must be administered by qualified healthcare professionals. In daily life, individuals should develop habits of regular eating and moderate hydration to maintain normal energy and fluid balance and reduce reliance on supplemental fluids.
