A calcium blood test can find out whether you have too much or too little of this key mineral in your bloodstream. It’s often part of a routine screening. This test helps screen for and diagnose ...

You probably already know your body needs calcium for strong bones. You also need it for your heart, muscles, and nerves to work properly. Too much or too little calcium in your body can lead to ...

It can reveal plaque in arteries, offering a more precise estimate of a person’s risk of heart disease. Yet the test remains ...