No fasting required.

Electrolytes are salts and minerals, such as sodium, potassium, chloride and bicarbonate, which are found in the blood. They can conduct electrical impulses in the body. The test is sometimes carried out during a routine physical examination, or it may be used as part of a more comprehensive set of tests.

 

Serum Electrolytes tests included:

1. Sodium (Na+)
2. Potassium (Ca+)
3. Chloride (Cl-)