A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
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General Information
Performed: Sun-Sat
Turn Around Time: 1-2 days
CPT Codes: 84432
Performed By: Referral Lab
Clinical Utility: Thyroglobulin (Tg) is measured by the Beckman Coulter 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.
Link:
Thyroglobulin, Fine Needle Aspiration (FNA)
Components
Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
Thyroglobulin, FNA |
Quantitative Chemiluminescent Immunoassay |
|
|
<10 |
|
ng/mL |
Specimen Requirements
Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
Fine Needle Aspiration |
Saline container |
|
|
1. Needle wash specimens for analysis should be collected in conjunction with cytology specimens.
2. Have saline available prior to start of procedure. Saline is the only acceptable solution for needle washings.
3. After each fine-needle aspiration biopsy (FNAB) has been collected and the material in the needle has been expelled onto a slide for cytologic analysis, attach the used FNAB needle to an empty syringe.
4. Withdraw between 0.10 mL and 0.25 mL of saline up through the needle until the saline starts to fill the hub of the needle or end of the syringe.
5. Expel the fluid back into the container. This is the needle washing used for analysis.
6. Repeat steps 2 through 4 for each needle pass of the same biopsied site and empty into the same tube, accumulating a total of 0.5 mL to 1.5 mL of fluid to send to the laboratory. (If more than 1 site is biopsied, see Note)
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