Thyroglobulin, FNA Needle Wash
General Information
- Lab Name
- Thyroglobulin, FNA Needle Wash
- Lab Code
- TGFNA
- Epic Name
- Thyroglobulin, FNA Needle Wash
- Description
Thyroglobulin antibody and recovery testing is not performed on fluid samples
A thyroglobulin level in a fine needle aspirate (FNA) wash is used in addition to cytological review of the biopsy sample to find evidence of metastatic thyroid cancer.
- References
Snozek CL et al., J Clin Endocrinol Metab (2007) 92(11):4278
- Synonyms
- Fluid Thyroglobulin, Tg-fluid
- Components
-
Code Name FTGSD Thyroglobulin Specimen Description FTGN Thyroglobulin, FNA Needle Wash FTGCOM Thyroglobulin Comment, FNA Needle Wash FTGM Thyroglobulin Method, FNA Needle Wash
Interpretation
- Method
Beckman Access thyroglobulin assay
- Reference Range
- See individual components
- Ref. Range Notes
Based on publication Snozek CL et al., J Clin Endocrinol Metab (2007) 92(11):4278
Patient results determined by assays using different manufacturers, instruments, or methods may not be comparable.- Interferences and Limitations
Proper collection of the FNA wash is required. After collection and expulsion of cytology samples, the fine needle aspirate needles are rinsed in a total volume of 0.5-1.0 mL normal saline.
Ordering & Collection
- Specimen Type
- Fluid
- Collection
-
After collection and expulsion of cytology samples, the fine needle aspirate biopsy needle are rinsed in total volume of 0.5 - 1 mL of normal saline and sent to the laboratory directly.
- Handling Instructions
Most often 2 samples are received per patient. One is a fine needle aspirate (FNA) and the other is a Wash. EACH SAMPLE MUST BE ORDERED SEPARATELY WITH A DIFFERENT ACC#. Please do not combine the samples.
If only the FNA sample is received, the test will still be run.
- Quantity
-
Requested: 1 mL fluid
Minimum: 0.5 mL fluid
Processing
- Receiving Instructions
Freeze fluid at -20°C
Outside Laboratories: Collect sample as noted above. Refrigerate or Freeze sample for transport to UW-MT
Stability: up to 8 hours at Room Temperature; up to 14 days at 2-8°C; stable long term at -20°C. Avoid repeated freeze thaw cycles.
- Misc Sendout
Performance
- Lab Department
- Chemistry, Automated Panels(CHA)
- Frequency
- twice a week
- Available STAT?
- No
- Performing Location(s)
-
UW-MT Chemistry, Special
206-520-4600Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195
Billing & Coding
- CPT Codes
- 84432
- LOINC
- 53922-1
- Interfaced Order Code
- UOW3330