Test Details
Mnemonic
BIACT
Ordering Code
3717900
CPT-4 Code(s)
82239
Specimen Information
Patient Preparation
Patient must fast a minimum of eight hours prior to collection.
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge and separate serum from cells within 1 hour of collection. Send 1.0 mL serum refrigerated in a screw capped plastic vial.
Alternate Specimen
Serum: Red top
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Unspun Serum separator tube (SST) or red top tubes
Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Spectrophotometry
Reference Range
0 - 19 µmol/L
Performing Laboratory
Quest Valencia