saltløsningen

Saltløsningen, often referred to as saline solution or simply saline, is a solution of sodium chloride (NaCl) dissolved in water. The concentration of sodium chloride in saline solutions can vary depending on its intended use. Physiological saline, also known as normal saline, is a solution with a concentration of 0.9% sodium chloride by mass. This concentration is isotonic, meaning it has roughly the same salt concentration as human blood and other bodily fluids. This isotonic property makes physiological saline particularly useful in medical applications.

In medicine, physiological saline is widely used for intravenous fluid replacement to treat dehydration, blood loss, and electrolyte imbalances. It is also used to clean wounds and as a diluent for various medications. The neutrality of its pH and its similarity to natural body fluids minimize irritation and adverse reactions when introduced into the body.

Beyond medical uses, saline solutions have applications in laboratories for scientific experiments and in contact lens solutions for cleaning and storing lenses. The term "saltløsningen" is a direct translation from Scandinavian languages, meaning "salt solution." Regardless of the terminology, its fundamental composition and widespread utility remain consistent.