Indicator Explainer
Calcium
An element with atomic symbol Ca, atomic number 20, and atomic weight 40.08.
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, C331. 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 — Calcium (C331)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C331. NCI definition, reproduced without modification under CC BY 4.0.
- A calcium-independent CDPK positively regulates drought resistance in maize by modulating the ABA signaling pathway. — J Genet Genomics, 2026-10-09 (PMID 42855045; literature)
- Acid-degradable hollow calcium-manganese nanocarriers integrate calcium stress, redox catalysis, and antitumor immunity for lung cancer therapy. — Acta Biomater, 2026-10-09 (PMID 42854937; literature)
- Loss of residues required for β-arrestin recruitment in the calcium-sensing receptor C-terminal tail may contribute to hypocalcemia. — J Biol Chem, 2026-10-09 (PMID 42854907; literature)
- Aebp1 drives a ceramide-gated Calhm2 calcium influx that injures podocytes in diabetic kidney disease. — J Adv Res, 2026-10-09 (PMID 42854902; literature)
- Enhancing humification enzymatic activity and antibiotic resistance gene attenuation in aerobic composting of sewage sludge and food waste: The role of calcium oxide amendment. — Waste Manag, 2026-10-09 (PMID 42854629; literature)
- Ionized Calcium and Low Cardiac Output Syndrome: Is Calcium the Sole Determinant? — Anesth Analg, 2026-10-09 (PMID 42854249; literature)
- Calcium-Sensing Receptor-NLRP3 Inflammasome Signaling in Cardiovascular Diseases: Preclinical Evidence and Translational Perspectives. — Eur J Pharmacol, 2026-10-15 (PMID 42880537; literature)
- Raman-Grounded Deep Learning for Calcium Carbonate Polymorph Sensing during Microfluidic Biomineralization. — ACS Sens, 2026-10-15 (PMID 42879792; literature)
- A Calcium-Overloading MOF Platform with Cuproptosis for Cancer Therapy and Inhibition of Cancer Cell Growth and Migration. — ACS Appl Bio Mater, 2026-10-23 (PMID 42913485; literature)
- Advanced Subclinical Atherosclerosis in Young Individuals and Risk of Mortality Over 30 Years: The Coronary Artery Calcium Consortium. — JAMA Cardiol, 2026-10-23 (PMID 42912400; literature)
- A Review of the Roles of Calcium Signaling and Homeostasis in Nicotine Addiction: A Mechanistic Hypothesis Involving ATP2B2/PMCA2 and α7-Nicotinic Acetylcholine Receptors. — Med Sci Monit, 2026-10-29 (PMID 42952109; literature)
- From Phase-separated Precursors to Coordinated Assembly: A New Nucleation Pathway for Calcium-Silicate-Hydrate. — Small, 2026-10-28 (PMID 42952205; literature)