ARUP's Laboratory Test Directory

Thyroglobulin, Fine Needle Aspiration (FNA) : 0020753

Mnemonic: THYROG FNA

Methodology: Chemiluminescent Immunoassay
Performed: Sun-Sat
Reported: 1-3 days
Specimen Required: Collect:  Fine needle aspiration in saline. Also acceptable: Non-viscous body fluids.

Storage/Transport Temperature:  0.5 mL saline needle rinse at 2-8°C. (Min: 0.5 mL)

Remarks:  Indicate source on test request form. Centrifuge to remove cellular material. Specimen must be non-viscous and free of particulate matter. Frozen specimens are also acceptable. Heparinized specimens are also acceptable.

Unacceptable Conditions:  Viscous specimens. Specimens containing EDTA.

Stability (collection to initiation of testing):  Ambient: 8 hours; Refrigerated: 1 week; Frozen: 6 months
Reference Interval:
By report
Interpretive Data: Thyroglobulin (Tg) is measured by the Beckman Access method. Results obtained with different assay methods or kits cannot be used interchangeably. The Tg result, regardless of concentration, should not be interpreted as absolute evidence for the presence or absence of papillary or follicular thyroid cancer. This test is FDA cleared but is not labeled for use with FNA fluid.

The performance characteristics of this test were determined by ARUP.
CPT Code(s): 84432
Cross References: Fine Needle Aspiration (FNA), Thyroglobulin, Thyroglobulin, Fine Needle Aspiration (FNA)
 
 

 

 

 
All ARUP Sites:        www.aruplab.com     ·     www.arupconsult.com     ·     www.arup.utah.edu     ·     www.childx.org     ·     www.utahblood.org