Ionized Calcium - Serum

Ionized Calcium - Serum


Ionized calcium is calcium in your blood that is not attached to proteins. It is also called free calcium. Most of the time, blood tests measure your total calcium level. This looks at both ionized calcium and calcium attached to proteins. You may need to have a separate ionized calcium test if you have factors that increase or decrease total calcium levels. These may include abnormal blood levels of albumin or immunoglobulins. This test is used to diagnose, monitor progress and treatment of kidney or parathyroid disease.

This Test Includes

Ionized Calcium

Test Instructions

Total parameters available: 1

Parameter Names:

  • Ionized Calcium - Serum

Test Instructions/Precautions:

  • Alcohol: Please abstain from alcohol before the test
  • Medication :Any pre-existing medication should only be stopped after consultation with the referring Physician
  • Fluids Allowed : Water only


Soft Copy (Portal/Email) : If the sample is collected before 12 noon then the report will get delivered as per Reporting Time / Maximum TAT (Turn Around Time) indicated with the test. For samples collected after 12 Noon, 12 hours may be added to the Report Turn Around TimeHard Copy : Delivered at home upon request. A small convenience fee may apply.

Why it is Done

As a part of a complete metabolic panel (CMP) or basic metabolic panel (BMP). If you have signs or symptoms suggestive of

  • Kidney disease.
  • Thyroid disease.
  • Parathyroid disease.
  • Malnutrition.
  • High calcium levels such as constipation, abdominal pain, increased thirst or weakness.
  • Low calcium levels such as tingling fingers or muscle cramps.

What is this test

Ionized Calcium - Serum test provide information about Ionized calcium levels. Ionized calcium also called free calcium, is the amount of calcium that is floating in the blood, not attached to proteins.