Electrolytes are important because they are what cells use to maintain voltage across their cell membranes and carry electrical impulses (nerve impulses, muscle contractions) across themselves to other cells.

Electrolyte disorders include abnormal increases or decreases in essential minerals in the body. Electrolyte disorders in general or imbalances of the above minerals can cause symptoms such as headaches, dizziness and seizures.

Urine osmolality is a test that evaluates the amount of solutes in a unit volume of urine, by measuring the concentration of solutes in urine. This is a highly accurate method, helping to diagnose diseases much better than measuring urine specific gravity.

Electrolytes play a very important role in the human body because they are used by cells to maintain metabolism and body functions.