EDTA is an additive in tubes that are used to collect blood These tubes are generally lavender, purple, pink, gray, or navy blue This keeps blood from clotting so that analysis can be done on whole blood Tests that are run on these samples included the CBC (complete blood count), the ESR (erythrocyte sedimentation rate), and hemoglobin A1C Complete blood count samples are drawn in a purple or lavendertopped EDTA tube Plasmas are also not interchangeable EDTA plasma has an excess of a powerful chelating agent that will sequester metal ions such as calcium and magnesium EDTA plasma will also inactivate some enzymes that require a metal ion for their activityIt can be used to collect and reserve blood specimens for routine blood tests and whole blood tests, applicable to various blood cell analyzer Model Spec Volume
Blood Collection Procedures All Plasma Tubes Were Collected In Edta Download Scientific Diagram