What is Serum Calcium Test?

Serum calcium test is done to monitor the overall calcium level in the body. It determines both the total and free calcium content of the blood.


What is the normal range for a Serum Calcium Test?

For adults, the normal calcium range is approximately 8.5 to 10.2 mg/dl.


What do the deviations from the normal range indicate?

A high calcium level occurs in:

  • Hyperparathyroidism
  • Sarcoidosis
  • Tuberculosis

A low calcium level occurs in:

  • Hypoparathyroidism
  • Renal failure
  • Vitamin D deficiency
  • Critical illness


Is there any special preparation required?

Overnight fasting is preferred.

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