Thyroid-Stimulating Hormone (TSH), Third Generation

Additional Information:

EPIC Test Name: THYROID STIMULATING HORMONE

CPT Code(s):

84443

Collection Procedure:

Collect blood in SST tube. Allow specimen to clot. Centrifuge and store refrigerated until transported to lab.

Specimen Requirements:

Specimen 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: 5 days
  • Frozen: 1 month

Use:

This test is used to screen and monitor thyroid function.

Methodology:

Solid-phase, two-site chemiluminescent immunometric assay

Reported:

1-3 business days

Reference Values:

0.4 to 4 μIU/mL

Performed:

Monday - Friday