Widely used in medical settings to provide energy and hydration to patients who cannot take fluids or nutrients orally. It serves as a primary source of calories in intravenous nutrition and helps manage conditions like hypoglycemia, dehydration, and diabetic ketoacidosis under controlled conditions. Commonly used in 5% or 10% concentrations, it supports drug delivery by acting as a diluent for intravenous medications. In surgical and emergency care, it helps maintain blood glucose levels and fluid balance. Also used in diagnostic procedures, such as glucose tolerance tests, to assess metabolic function.