Test Details
Mnemonic
HTLWB
Ordering Code
3621850
CPT-4 Code(s)
86689
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate from cells within 2 hours of collection, send 1.0 mL serum.
Alternate Specimen
Lavender EDTA, green sodium or lithium heparin, light blue sodium citrate
Minimum Volume
0.5 mL
Transport Temperature
Frozen
Rejection Criteria
Specimens containing particulate matter.
Stability
Room temperature: Not acceptable
Refrigerated: 7 days
Frozen: Indefinitely
Refrigerated: 7 days
Frozen: Indefinitely
Methodology
Qualitative Western Blot
Reference Range
Negative
Performing Laboratory
ARUP
New York DOH Approval Status
Yes