Additional Information:
EPIC Test Name: T4 (THYROID HORMONE)
CPT Code(s):
84436
Collection Procedure:
Collect specimen in SST tube. Allow to clot. Centrifuge and store refrigerated. Transport to lab.
Specimen Requirements:
Type: Serum (preferred) or Plasma
Container/Tube: SST or Lithium Heparin (Green top)
Sample Volume: 1 mL
Minimum Volume: 0.2 mL (Repeat testing is not possible with this specimen volume.)
Storage: Refrigerate
Stability (collection to time of analysis/testing):
- Refrigerated: 7 days
- Frozen: 2 months
Methodology:
Solid-phase, competative chemiluminescent enzyme immunoassay
Reported:
1-3 days
Reference Values:
4.5 - 12.5 μg/dL
Performed:
Monday - Friday