Calcitonin


Sunquest Code:CALTN  
Epic Code:LAB519Epic Name:Calcitonin
Synonyms:Thyrocalcitonin
Methodology:Chemiluminescent immunoassay
CPT Code:82308
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-2 days.


Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:2.2 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Red (no gel))
Causes for Rejection:Tissue or urine; EDTA plasma, grossly hemolyzed or lipemic specimens.


Processing and Shipping

Specimen Processing:Separate serum or plasma from cells within 2 hours of collection. Aliquot 2 mL, 1 mL minimum into an ARUP transport tube. Store refrigerated.
Shipping Instructions:Ship refrigerated.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:70006


Interpretive

Reference Range:
Female, 3 y and older 0-5.1 pg/mL
Male, 3 y and older 0-7.5 pg/mL
Reference ranges for patients under 3 years of age is not provided by the reference laboratory.
Limitations:The Siemens Immulite 2000 method is used. Results obtained with different assay methods or kits cannot be used interchangeably. Calcitonin is useful in monitoring medullary thyroid carcinoma. The calcitonin assay value, regardless of level, should not be interpreted as absolute evidence of the presence or absence of malignant disease.
Use:
Diagnose and monitor medullary thyroid carcinoma (MTC). Secondary test to assist in diagnosing multiple endocrine neoplasa type II and familial MTC.  


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