CSF Chloride

Test Code

CSFCL

CPT Codes
82438

Preferred Specimen

Cerebrospinal Fluid

Minimum Volume

1 mL

Instructions

Collect CSF in a sterile container and transport directly to lab.

Transport Container

Sterile container or spinal fluid tube.

Transport Temperature

Room Temperature or Refrigeration; Refrigerate specimen if transport to lab wil take longer than 2 hours.

Specimen Stability

Room Temperature - 2 hours; Refrigerated - 24 hours

Methodology
Potentiometric

Setup Schedule

Daily upon receipt

Report Available

Upon completion of analysis

Reference Range

118 - 132 mmol/L

Clinical Significance

Cerebrospinal fluid, which cushions the brain and spinal cord, is formed by both ultrafiltration and active secretion from plasma. Cerebrospinal fluid chloride levels generally reflect systemic (blood) chloride levels and are of limited clinical utility in the diagnosis of meningitis and other conditions or diseases related to CSF.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.