Metabolic
Calcium
Calcium is the most abundant mineral in the body, with 99% stored in bones and teeth. Blood calcium is tightly regulated by parathyroid hormone (PTH), vitamin D, and calcitonin.
High calcium (hypercalcemia) most commonly results from hyperparathyroidism or malignancy. Low calcium can indicate vitamin D deficiency, hypoparathyroidism, or magnesium deficiency.
What It Measures
Total calcium concentration in blood serum.
Reference Ranges
| Status | Range (mg/dL) |
|---|---|
| Optimal | 9.0–10.0 mg/dL |
| Normal | 8.5–10.5 mg/dL |
| Borderline | 10.5–11.0 mg/dL |
| Out of Range | > 11.0 mg/dL or < 8.0 mg/dL |
How GATOR Tracks This
Lab Providers
Function HealthLabCorpQuest
Related Biomarkers
This content is for informational purposes only and does not constitute medical advice. Reference ranges may vary by laboratory and individual factors. Consult a qualified healthcare provider for interpretation of your results and treatment decisions.
Track Calcium in GATOR
Import your lab results and see how this biomarker trends over time with AI-powered context.
Get Started Free