Electrolytes

Reviewed: 16. April 2026

Ca Calcium

Unit: mmol/l

Quick Explanation

Calcium (Ca) is a mineral essential for bones, muscles, and nerves. High blood levels may indicate parathyroid disorders or bone disease; low levels may indicate vitamin D deficiency or malnutrition. Discuss any deviations with your doctor.

📊 Reference Values

Normal
2.2 – 2.6 mmol/l
Elevated (hypercalcemia)
2.6 – 3 mmol/l
Highly elevated
↑↑above 3 mmol/l

ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.

🔍 Possible Causes

Value too high — possible causes

  • ·Primary hyperparathyroidism
  • ·Cancer
  • ·Vitamin D overdose
  • ·Sarcoidosis

Value too low — possible causes

  • ·Vitamin D deficiency
  • ·Hypoparathyroidism
  • ·Magnesium deficiency
  • ·Kidney disease

This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.

🩺 Questions for Your Doctor

  • What is causing my elevated or low calcium?
  • Should I have my vitamin D level tested?
  • Do I need a parathyroid evaluation?

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Medical Disclaimer

The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.

Ca value: Calcium explained | Medyra | Medyra AI