A crystalloid fluid is an aqueous solution of mineral salts and other small, water-soluble molecules. Most commercially available crystalloid solutions are isotonic to human plasma. These fluids approximate concentrations of various solutes found in plasma and do not exert an osmotic effect in vivo.

Which IV fluids are Crystalloids?

The most frequently used crystalloid fluid is sodium chloride 0.9%, more commonly known as normal saline 0.9%. Other crystalloid solutions are compound sodium lactate solutions (Ringer's lactate solution, Hartmann's solution) and glucose solutions (see 'Preparations containing glucose' below).

What are Crystalloids?

Crystalloid may refer to: A substance that, when dissolved, forms a true solution and is able to pass through a semipermeable membrane. They get separated from colloids during dialysis.