Lactated Ringer's solution is a sterile intravenous fluid commonly used in medical settings. It contains a balanced mixture of electrolytes, including sodium, potassium, calcium, and lactate, which helps maintain the body's acid-base balance. This solution is often administered to patients who are dehydrated or require fluid replacement after surgery or injury. The lactate in the solution is converted to bicarbonate in the liver, helping to correct metabolic acidosis. Lactated Ringer's solution is preferred over normal saline in certain situations because it more closely resembles the body's natural plasma composition, making it beneficial for various clinical applications.