Ionized calcium test

Calcium is an important mineral that your body uses in many ways. It increases the strength of your bones and teeth and helps your muscles and nerves function.

A serum calcium blood test measures the total calcium in your blood. There are several different forms of calcium in your blood. These include ionized calcium, calcium bound to other minerals called anions, and calcium bound to proteins like albumin. Ionized calcium, also known as free calcium, is the most active form.

Low levels of free calcium can cause your heart to slow down or speed up, cause muscle spasms, and even result in a coma. Your doctor may order an ionized calcium test if you have any signs of numbness around your mouth or in your hands and feet, or if you have muscle spasms in the same areas. These are symptoms of low free calcium levels.

  • Sample of blood serum
  • We perform the test daily