Indicator Explainer
Calcitonin
Calcitonin (32 aa, ~3 kDa) is encoded by the human CALCA gene. This protein is involved in the modulation of blood calcium and phosphate concentrations through promoting incorporation of these ions into bone.
This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.
When it is tested
Source: National Cancer Institute, NCI Thesaurus 26.09d, C2281. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Reading results
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also Known As
References
- NCI Thesaurus 26.09d — Calcitonin (C2281)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C2281. NCI definition, reproduced without modification under CC BY 4.0.
- Calcitonin Gene-Related Peptide (CGRP) in Bone Repair and Musculoskeletal Pain: A Scoping Review of Skeletal Regeneration, Joint and Tendon Involvement, and CGRP-Targeted Therapies. — Calcif Tissue Int, 2026-10-01 (PMID 42820961; literature)
- Calcitonin-negative 'MTC-like' thyroid paraganglioma revealing an SDHD-related hereditary paraganglioma syndrome: functional confirmation of a non-canonical splice-site variant. — Eur Thyroid J, 2026-10-01 (PMID 42804417; literature)