Test Details
Mnemonic
RETBP
Ordering Code
3681310
CPT-4 Code(s)
83883
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Grossly lipemic or hemolyzed specimens
Stability
Room temperature: 4 hours
Refrigerated: 7 days
Frozen: 90 days
Refrigerated: 7 days
Frozen: 90 days
Methodology
Quantitative Nephelometry
Reference Range
3 – 6 mg/dL
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes