Test Details
Mnemonic
VALTF
Ordering Code
3700015
CPT-4 Code(s)
80164, 80165
Specimen Information
Patient Preparation
Draw trough sample 1 hour before next dose.
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells and send 3.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Plasma: Lavender EDTA
Minimum Volume
1.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum separator tube (SST), Plasma separator tube (PST)
Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Immunoassay
Reference Range
See report
Performing Laboratory
Quest Valencia