Calcitonin [30742]

Message

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

CALCIT

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 Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
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

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: November 15, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.