The Role of Normal Saline

Normal saline, a 0.9% sodium chloride solution, plays an important role in medical treatment and daily care due to its osmotic pressure being similar to that of human blood. 1. Normal saline can rapidly replenish body fluids and electrolytes, especially after dehydration, diarrhea, or intense physical activity, helping to maintain fluid balance and prevent electrolyte disturbances. 2. It has cleansing and disinfecting properties and can be used for wound irrigation to reduce bacterial contamination and promote healing. Additionally, it can be used to clean areas such as the nasal passages and oral cavity, keeping mucous membranes moist and preventing infections. 3. Normal saline also serves as a solvent for many medications, ensuring their stable release and effective absorption in the body. In intravenous therapy, normal saline is an essential fluid used to regulate fluid balance and medication concentration.