Test Details
Mnemonic
GBM
Ordering Code
3016100
CPT-4 Code(s)
83516
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw capped plastic vial.
Alternate Specimen
Red top
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Grossly hemolyzed or lipemic specimens, plasma
Stability
Room temperature: 8 hours
Refrigerated: 2 days
Frozen: 14 days
Refrigerated: 2 days
Frozen: 14 days
Methodology
Enzyme Linked Immunosorbent Assay
Reference Range
Negative: 0 - 20 Units
Weak Positive: 21 - 30 Units
Moderate to Strong Positive: >30 Units
Weak Positive: 21 - 30 Units
Moderate to Strong Positive: >30 Units
Performing Laboratory
Warde Medical Laboratory