Complete blood count (CBC) is the most routine blood test that gives information about the cells in your blood. While it is not a conclusive test, it is widely used to understand how well you are generally. It helps gauge if you suffer from any kind of infection, are anaemic, or to simply know if there is anything in your body that is causing your symptoms.
A complete blood count will include various investigations. The aspects tested are red blood cell (RBC) count, white blood cell (WBC) count, platelet count and haemoglobin count. Normal range is as follows: RBC count 4.5 to 5.5 million cells/cubic mm, WBC count 4000 – 11000 cells/ cu mm, platelet 1.5 to 4 lakhs/cu mm and haemoglobin count in a male 13-15 gms/ dl and in a female 12 – 14 gms/ dl.
Abnormally high or low counts can indicate the presence of anaemia, infections, clotting problems, blood cancers and immune system disorders.