Test Details

Mnemonic

FT4T4

Ordering Code

3510197

CPT-4 Code(s)

84439, 84436

Specimen Information

Patient Preparation

Fasting prior to collection is preferred.

Collect

SST

Specimen Preparation

Centrifuge, separate serum from cells and send 2.0 mL serum refrigerated in a screw-capped plastic vial.

Alternate Specimen

Serum: Red-top

Minimum Volume

1.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Lipemia, heparin or EDTA plasma

Stability

Room temperature: 4 days
Refrigerated: 7 days
Frozen: 28 days

Methodology

Equilibrium Dialysis • Chromatography/Mass Spectrometry • Chemiluminescence (CL)
more

Reference Range

See report
more

Performing Laboratory

Quest SJC
more