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THYROGLOBULIN, LN ASPIRATE
Test Code502380
Alias/See Also
Lymph Node Aspirate
CPT Codes
84432
Preferred Specimen
"Lymph node aspirate in saline
1 mL"
1 mL"
Minimum Volume
"1 mL (Note: This volume does not allow for repeat testing.)
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Instructions
"Please refer to the Lymph Node Aspirate Collection Kit (Catalog N° 38621G, Peoplesoft N° 75203) for detailed instructions and saline solution vial.
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Transport Container
"Lymph Node Collection Kit and saline vial
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Transport Temperature
Frozen
Specimen Stability
Freeze; stable for 200 days. Stable at room temperature or refrigerated for one day.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Nonsaline samples
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Methodology
"Immunochemiluminometric assay (ICMA) "
Limitations
"Lower limit of quantitation (LLOQ) = 1.0 ng/mL per one FNA collection diluted in 1 mL of saline
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Clinical Significance
"Indicates possible thyroid cancer recurrence in lymph nodule tissue. Results of lymph node aspirates diluted in saline should be interpreted in conjunction with fine needle aspirate cytological analysis and ultrasonography.
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