Laboratory Services

Calcitonin, Serum

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Updated Test Information:

Test Description
Calcitonin, Serum
Synonym(s)

CT (Calcitonin), Thyrocalcitonin

Test ID
CATN
General Information

Aids in the diagnosis and follow-up of medullary thyroid carcinoma


Aids in the evaluation of multiple endocrine neoplasia type II and familial medullary thyroid carcinoma


This test is not useful for evaluating calcium metabolic diseases.

Container Type

Plastic vial

Specimen Type

Serum

Alternate Specimen Type

Red top

Specimen Requirements

Serum gel

Specimen Collection / Processing Instructions

1. After collection, immediately place specimen on ice.
2. Refrigerate specimen during centrifugation and immediately transfer serum to a plastic vial.

Minimum Sample Volume

0.75 mL

Additional Processing Details

Patient Preparation: For the 12 hours before specimen collection, do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.

Stability

Frozen (preferred): 90 days
Refrigerated : 24 hours
Ambient: 4 hours

Unacceptable Specimen Conditions

Gross Hemolysis: Reject
Gross Lipemia: OK

Methodology

Electrochemiluminescence Immunoassay

Estimated TAT

Same day/1 day from receipt at lab

Testing Schedule

Monday through Friday; 5 a.m.-12 a.m.
Saturday; 6 a.m.-6 p.m

CPT Code(s)

82308

Reference Range

Pediatric

1 month: < or =34 pg/mL
2 months: < or =31 pg/mL
3 months: < or =28 pg/mL
4 months: < or =26 pg/mL
5 months: < or =24 pg/mL
6 months: < or =22 pg/mL
7 months: < or =20 pg/mL
8 months: < or =19.0 pg/mL
9 months: < or =17.0 pg/mL
10 months: < or =16.0 pg/mL
11 months: < or =15.0 pg/mL
12-14 months: < or =14.0 pg/mL
15-17 months: < or =12.0 pg/mL
18-20 months: < or =10.0 pg/mL
21-23 months: < or =9.0 pg/mL
2 years: < or =8.0 pg/mL
3-9 years: < or =7.0 pg/mL
10-15 years: < or =6.0 pg/mL
16 years: < or =5.0 pg/mL

 

Adults

17 years and older:
Males: < or =14.3 pg/mL
Females: < or =7.6 pg/mL

Performing Lab

Mayo

LOINC Code(s)

1992-7