Test Details
Mnemonic
HTL12
Ordering Code
3503620
CPT-4 Code(s)
86790, plus 86689 if repeatedly positive and reflexed to WB confirm, at additional cost
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells within 2 hours and send 0.5 mL serum in a screw capped plastic vial.
Alternate Specimen
Plasma: Lavender EDTA, green sodium or lithium heparin, light blue sodium citrate
Serum: Red top
Serum: Red top
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Grossly hemolyzed, lipemic or heat-inactivated specimens Specimens containing particulate matter
Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: Indefinitely
Refrigerated: 7 days
Frozen: Indefinitely
Methodology
Enzyme Linked Immunosorbent Assay
Reference Range
Negative
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes