What is Saline

Saline solution is a solution of sodium chloride, or salt, in sterile water. Normal saline solution is 0.9% sodium chloride, though this refers to only one possible concentration. Other concentrations may be used for different purposes.

Normal saline is most commonly used as an intravenous (IV) infusion, administered through an IV drip for patients who have become severely dehydrated and to prevent dehydration in patients who cannot consume liquids and nutrients by mouth.