A calcium blood test checks your calcium levels to monitor bone, kidney, and thyroid diseases. You may get one of two main types of calcium blood tests: total calcium and ionized calcium tests. Too ...

An ionized calcium test measures the levels of a specific form of calcium in your blood. It’s performed by taking a small blood sample. You’ll typically need to fast before the test. Calcium is an ...

The total calcium blood test is used to measure the total amount of calcium in your blood. Calcium is one of the most important minerals in your body. Most of your body’s calcium is stored in your ...