Thyroglobulin Point of Care Assay for Rapid Detection of Metastatic Differentiated Thyroid Carcinoma

"FNA Clinic: When a bloody material is seen in the needle, 100 µL of 0.9% saline is drawn via the needle into the syringe. The aspirate is then transferred into an Eppendorf tube. 40 µL is aspirated from the Eppendorf tube and dripped into the middle of the sample well of the POC-Tg kit. Two drops of the buffer are then dispensed into the middle of the sample well. The result of the POC-Tg is obtained and documented after 10 minutes. To compare the accuracy of the POC-Tg kit to the formal immunoassay for Tg, 0.9% saline is added to the aspirate that was left in the Eppendorf tube to a final volume of 0.6 mL. This volume is transferred into a gel containing tube and sent to the clinical laboratory that performs Tg measurement.~Operating room: When an indeterminate or suspicious LN is found, the LN is dissected and evaluated by both the formal evaluation and the POC-Tg. Following dissection of the LN, the ex-vivo POC-Tg is conducted as described above."