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Test Code CL Chloride (Cl) LAB59

Performing Laboratory

UnityPoint The Finley Hospital

Test Method

Ion-Selective Electrode; Roche cobas Pro

Performance

Testing is performed Monday through Sunday.

Routine: Typically completed within 4 hours after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimenarrives at the testing site.

Specimen Requirement

  1. Serum (Red/Gold) or lithium heparin plasma (Green): 0.5mL
  2. It is recommended that the serum or plasma be separated from contact with cells within 2 hours from time of collection.
  3. Chloride specimens are stable for 7 days at 15-25°C and 2-8°C, and indefinitely when stored frozen at -20°C.

Useful For

Chloride is the major extracellular anion. Similarly to the other ions, common causes of decreased chloride include reduced dietary intake, prolonged vomiting and reduced renal reabsorption as well as some forms of acidosis and alkalosis. Increased chloride values are found in dehydration, kidney failure, some forms of acidosis, high dietary or parenteral chloride intake, and salicylate poisoning.

Reference Values

98‑107 mmol/L

CPT Code Information

82435 Chemistry: Chloride; blood

LOINC Code Information

2075-0 Chloride [Moles/Volume] In Serum Or Plasma