A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Calcitonin
Test CodeCALC
Alias/See Also
30742
CPT Codes
82308
Preferred Specimen
1 mL frozen serum
Patient Preparation
Overnight fasting is preferred
Minimum Volume
0.5 mL
Instructions
Spin to separate serum and transfer to plastic screw-cap vial. Freeze immediately and submit to laboratory frozen.
Transport Container
Plastic screw-cap vial
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 28 days
Refrigerated: Unacceptable
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 1 day after receipt at the performing laboratory. Add two (2) days for transport.
Limitations
Basal concentrations of >100 pg/mL have been found to have 100% positive predictive value for medullary thyroid cancer. Lower concentrations may be observed in some patients with clinically apparent medullary thyroid cancer.
Reference Range
See Laboratory Report
Clinical Significance
Calcitonin concentration is increased in patients with medullary thyroid carcinoma. Calcitonin concentrations may be used to monitor disease.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: May 4, 2023