Test Details
Mnemonic
LDTBF
Ordering Code
3619640
CPT-4 Code(s)
83615
Specimen Information
Collect
Cerebrospinal fluid (CSF)
Specimen Preparation
Specimen source required. Collect CSF, centrifuge to remove cellular material and send 1.0 mL fluid in a screw capped plastic vial.
Alternate Specimen
Pericardial fluid, peritoneal/ascites fluid, pleural fluid or synovial fluid
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated
Rejection Criteria
Specimen types other than listed
EDTA, potassium oxalate, sodium fluoride, hemolyzed specimens
EDTA, potassium oxalate, sodium fluoride, hemolyzed specimens
Stability
Room temperature: 7 days
Refrigerated: 4 days
Frozen: 6 weeks
Refrigerated: 4 days
Frozen: 6 weeks
Methodology
Quantitative Enzymatic
Reference Range
See report
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes