Which calcium test to do?

Ionized calcium gives you a true estimate of the actual USEFUL amount of calcium in your blood.

What is ionized calcium

Ionized calcium is the calcium that is not bound to other substances in the blood. This calcium is the one that is deposited in your bones.

Ionized Calcium Test

This blood test is a special test that is performed by specialized laboratories. It requires different equipment from the "usual" calcium test.

What is total calcium

Total calcium, which is measured by most routine labs, is a sum of all the different types of calcium and does not reflect the actual USEFUL amount of calcium in your blood

What is normal range for ionic calcium?

The normal range is 4.8 - 5.6 mg/dl

Test methodology

Test is performed with a machine equipped with an electrode. This is different from routine biochemical tests.

---