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Labcorp Oklahoma, Inc.
Test Directory


Index:

Thyroglobulin, Fine Needle Aspirate

Order Name FNA THYROG
Test Number: 3608039
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Thyroglobulin, Fine Needle Aspirate
Double-Antibody Radioimmunoassay (RIA) 53922-1 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1mL Saline node washings Sterile Screwtop Container Frozen
Instructions Notes: 1 mL (Note: This volume Does NOT allow for repeat testing)
Specimen Type: Lymph Node Collection Kit and saline vial
Specimen Storage: FREEZE
Specimen Collection: Please refer to Lymph Node Aspirate Collection Kit (Catalog No 38621G, Peoplesoft No 75203) for detailed instructions and saline solution vial.
Special Instructions: Testing is performed at Esoterix Endocrinology Laboratory: ES#501916.
Specimen Stability: Ambient: 3 days, Refrigerated : 7 days, Frozen: 200 days
GENERAL INFORMATION
Expected TAT 3 - 15 days  
Clinical Use Clinically enlarged cervical lymph nodes with a history of thyroid cancer are usually assessed by fine-needle aspiration biopsy (FNAB) followed by a cytology. Thyroglobulin (Tg) is frequently elevated in malignant FNAB needle wash specimens and it's use may possibly augment or replace cytology. 
Performing Labcorp Test Code 502380 
Notes Labcorp Test Code: 502380
CPT Code(s) 84432
Lab Section Reference Lab