Calcium

also known as Ca

NORMAL_RANGE
8.5 – 10.5 mg/dL
UNIT
mg/dL

/WHAT_IT_IS

Calcium is essential for bone, muscle function, and nerve conduction. Tightly regulated by PTH and vitamin D.

/NORMAL_RANGE

Reference: 8.5–10.5 mg/dL.

What does high Ca mean?

  • +Hyperparathyroidism, vitamin D excess, malignancy, immobilization.

What does low Ca mean?

  • +Hypoparathyroidism, vitamin D deficiency, kidney disease, low albumin (artifact).

/ON_TRT

Not directly affected by TRT.

/RELATED

/TRACK_THIS

Track Ca in the app.

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Last reviewed: 2026-06-04 · MyTRT does not provide medical advice. Always consult your physician.