Test Details
Mnemonic
FI1NT
Ordering Code
3024700
CPT-4 Code(s)
84163
Specimen Information
Patient Preparation
Collect specimen between CRL 32 mm and CRL 79.9 mm.
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum refrigerated in a screw capped plastic vial. A completed Prenatal Screen Information Sheet must accompany specimen.
Alternate Specimen
Serum separator tube (SST)
Minimum Volume
0.6 mL
Transport Temperature
Refrigerated
Rejection Criteria
Moderately hemolyzed, lipemic, or icteric specimens; plasma
Stability
Room temperature: 5 days
Refrigerated: 7 days
Frozen: 60 days
Refrigerated: 7 days
Frozen: 60 days
Methodology
Chemiluminescence (consistent with all other assays)
Reference Range
See report
Performing Laboratory
Warde Medical Laboratory