Test Details
Mnemonic
CSFLA
Ordering Code
3504190
CPT-4 Code(s)
83605
Specimen Information
Collect
Cerebrospinal fluid (CSF)
Specimen Preparation
CSF should be placed on ice after collection. Centrifuge to remove cellular material and send 0.5 mL CSF supernatant in a screw capped plastic vial. Separate specimens must be submitted when multiple tests are ordered.
Minimum Volume
0.2 mL
Transport Temperature
Frozen
Rejection Criteria
Hemolyzed specimen
Stability
After separation from cellular material:
Room temperature: 2 hours
Refrigerated: 3 days
Frozen: 4 months
One freeze/thaw cycle is acceptable
Room temperature: 2 hours
Refrigerated: 3 days
Frozen: 4 months
One freeze/thaw cycle is acceptable
Methodology
Enzymatic
Reference Range
≤15 years: 0.5 - 2.8 mmol/L
16 years and older: 1.2 - 2.6 mmol/L
16 years and older: 1.2 - 2.6 mmol/L
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes