Calcitonin Fine Needle Aspirate or Biopsy, Lymph Node

Abbrev Code:MMMISC   
Order Code:LAB4909Order Name:Laboratory Miscellaneous Order
Methodology:Electrochemiluminescence Immunoassay
CPT Codes: 82308 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-3 days.

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements.

Collection Instructions

Specimen:Fine needle wash
Optimal Volume:1.5 mL
Minimum\Peds Volume:0.5 mL
Container:Plastic leakproof container, sterile
Collection Instructions:A minimum of 0.5 mL is required for testing; however, the total collection volume should not exceed 1.5 mL. Sample volumes outside these parameters may be rejected. If more than 1 site is biopsied, each washing material should be submitted in a separate tube and under a different order number.
Causes for Rejection:Gross hemolysis; room temperature specimens.

Processing and Shipping

Specimen Processing:If bloody, centrifuge specimens and aliquot 1.5 mL, 0.5 mL minimum of supernatant. Do not process clear specimens. Freeze within 2-4 hours of collection.
Shipping Instructions:Ship on dry ice.
Stability:Stability: Samples are stable up to 4 hours refrigerated and 7 days frozen.
Test Performed at or Referral Lab Lab Sendouts  (Mayo Medical Laboratories)
Referral Lab number:CATLN


Reference Range:By report.
Use:As an adjunct to cytologic examination of fine needle aspiration specimens in athyrotic individuals treated for medullary thyroid carcinoma to confirm or exclude metastases in enlarged or ultrasonographically suspicious lymph nodes.

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