Total Leucocytes / WBC Count (TLC) Test

The Total Leucocytes / WBC Count (TLC) test measures the level of white blood cells in the blood. It is used for the diagnosis of infections, autoimmune diseases, immune deficiencies, blood disorders and several other diseases. White blood cells (leukocytes) play an essential role in the body's immune system. These cells fight infection by attacking alien or foreign bacteria, viruses and germs that invade the body.