Serum Chloride (Cl-)

 Chloride is a  hydrochloric acid salt that is the most abundant body anion in the extracellular fluid. Functions to counterbalance cations, such as sodium, and acts as a buffer during oxygen and carbon dioxide exchange in red blood cells (RBCs). Aids in digestion and maintaining osmotic pressure and water balance.

Normal Lab Value for Serum Chloride (Cl-)

• 95 – 105 mEq/L

Nursing Considerations for Serum Chloride

• Any condition accompanied by prolonged vomiting, diarrhea, or both will alter chloride levels.