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 ...
Doctors can check people’s blood for typical or atypical carbon dioxide (CO2) levels to help diagnose certain medical conditions. For example, a carbon dioxide test or CO2 test can help diagnose ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback