Thyroglobulin, Fine Needle Aspirate

Synonyms

• FNA
• LAB11885
• THYROFNA
• THYROGLOBULIN FNA

Cerner Name

Thyroglobulin FNA

Clinical Info

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

Specimen Sources

Abdominal Adrenal Gland, Left Adrenal Gland, Right Axilla, Left Axilla, Right Bone Brain Breast, Left Breast, Right Chest Diaphragm Eye Vitreous, Left Eye Vitreous, Right Kidney, Left Kidney, Right Liver Lung, Left Lung, Right Lymph Node Mediastinum Misc Ovary, Left Ovary, Right Pancreas, Body Pancreas, Head Pancreas, Tail Pelvic, FNA Pleura, Left Pleura, Right Prostate Retroperitoneum Salivary Gland, Left Salivary Gland, Right Soft Tissue Thyroid, Isthmus Thyroid, Left Thyroid, Right Thyroid, Total Show more...

Specimen Types

Aspirate

Specimen Volume

1 mL Fine Needle Aspirate (FNA) Lymph node (min 0.8 mL FNA) Or Thyroid tissue washing

Container

Sterile

Collection Instructions

Container/Tube: Sterile transport container
Specimen: 1 mL Fine Needle Aspirate (FNA) of Lymph Node (min 0.8 mL FNA) Or Thyroid tissue washing
Transport Temperature: Frozen
Alternative Specimens Non-lymph node, non-nodal soft tissue, or cervical node washings

Collection Instructions

A 25-gauge needle is inserted obliquely within the transducer plane of view and moved back and forth (passes) through
the nodule to compensate for patient movement and needle deflection. There is no suction device
cells move into the needle via capillary action. After collection of the cytology samples, withdraw between
 0.10 and 0.25 mL of saline up through each needle and empty this fluid back through the needle into a
tube. This is the needle washing used for analysis. Repeat the passes and saline washings from the same
biopsied site and empty contents into the same tube. The washes from all needles are pooled
(final volume 1 mL). Inspect specimen for visible blood or tissue contamination. 
If bloody, centrifuge specimen and transfer supernatant to a new tube to send to the laboratory.
The supernatant, not the cellular materials,
is used for analysis. If the specimen is clear, centrifugation is not necessary.

Freeze immediately and transport frozen sample to laboratory directly. Do not send specimens in glass tubes.

Transport Instructions

Frozen

Specimen Stability

14 Days Room Temperature
7 Days Refrigerated
28 Days Frozen

Methodology

Beckman Coulter Chemiluminescent

Days Performed

TAT: 5- 8 Days

Performing Laboratories

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

84432
 
LOINC Code: 53922-1

PDM

5960070

Results

Result Interpretation

Forms