Serum Chloride Balance Test - Serum Chloride Test

A measurement of the chloride ion (Cl-) concentration in blood serum. Chloride is the predominant extracellular anionic (negatively charged) electrolyte, fundamentally important for maintaining electrical neutrality alongside sodium and potassium. It plays a critical role in preserving fluid balance and regulating the body's acid-base equilibrium. Its serum levels frequently fluctuate concurrently with shifts in sodium and bicarbonate concentrations.