A complement blood test checks for autoimmune diseases or other issues with your immune system. Your doctor might test you if you have a family history of certain conditions, such as rheumatoid ...

Your complement system consists of a group of important proteins in your bloodstream. These proteins help your immune system fight off harmful invaders, such as bacteria, and other foreign substances.

Please provide your email address to receive an email when new articles are posted on . Low complement levels prior to pregnancy are associated with an increased risk for adverse outcomes, including ...

Please provide your email address to receive an email when new articles are posted on . PHILADELPHIA — Results showed posterior cervical laminectomy and fusion instrumented to C2 had longer operative ...