Blood CountA common test that can assist in the diagnosis of numerous infections, diseases, and illnesses is the full blood count, or FBC. Using a needle inserted into a vein in your hand or the crook of your elbow, the doctor, nurse, or technician collects a sample of your blood.
The blood test is gathered inside an exceptional vial that contains a substance to keep the blood from coagulating. A machine and the sample are taken to a laboratory for analysis.