The AG ratio test measures the ratio of albumin to globulin, the two main proteins in your blood. Albumin makes up 3.5 to 5.0 grams/deciliter of the total protein in your body, and the rest is ...

A factor VIII assay tests for a protein involved in blood clotting. If you produce less of this protein, it may indicate a bleeding disorder. Some people may also have high levels of this ...

New research suggests that blood tests used to diagnose Alzheimer's disease have racial disparities. Here's what's going on ...