The A1C test can also be used to diagnose gestational diabetes in the first trimester.

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

If your doctor suspects you have one of several diseases, they may want to perform an “enzyme-linked immunosorbent assay” test. This is more commonly known as an ELISA test, and it can help to confirm ...

BBC Sport's Ask Me Anything team explains what the 'Pink Test' is and why the players will be sporting pink during the fifth Ashes Test in Sydney.

Antigen tests can identify the presence of antigens within the body, which are substances that cause immune responses, such as the release of antibodies. The immune system, and antibodies specifically ...