Test Details
Mnemonic
CHLFL
Ordering Code
3600001
CPT-4 Code(s)
82438
Specimen Information
Collect
Cerebrospinal fluid (CSF)
Specimen Preparation
Centrifuge to remove cellular material and send 1.0 mL body fluid refrigerated in a screw capped plastic vial. Source must be provided.
Alternate Specimen
Drain, pancreatic, pericardial, peritoneal/ascites or pleural fluid
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated
Rejection Criteria
Specimens other than fluids listed above.
Specimens too viscous to be aspirated by instrument. Specimens containing sodium fluoride/potassium oxalate as anticoagulants.
Specimens too viscous to be aspirated by instrument. Specimens containing sodium fluoride/potassium oxalate as anticoagulants.
Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 6 months
Refrigerated: 7 days
Frozen: 6 months
Methodology
Quantitative Ion-Selective Electrode
Reference Range
See report
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes