A full blood count (FBC) alone cannot detect cancer, however it can be a useful tool in helping to diagnose certain types of cancer. An FBC can provide doctors with important information about a patient’s overall health and can help identify potential risk factors associated with certain types of cancer, such as anemia or low white blood cell count.
An FBC is done by taking a sample of a patient's blood and running it through a machine that counts the number of red blood cells, white blood cells, and platelets present. This information is then used to determine levels of hemoglobin, hematocrit, and other markers of health. An elevated or decreased count in any of these categories can indicate underlying issues that may be associated with cancer, such as anemia, infection, or inflammation.
In some cases, an FBC can be used to detect certain types of cancer, such as leukemia or lymphoma. Leukemia is usually associated with an abnormally high white blood cell count, while certain types of lymphoma are associated with a high lymphocyte count. An FBC can also detect the presence of abnormal cells, which can be an indication of cancer.
However, an FBC is not a definitive test for cancer and cannot be used on its own to diagnose the disease. It is only one of many tests that are used when cancer is suspected, and it should be used in conjunction with other tests such as imaging tests, biopsies, and tissue samples.
In conclusion, a full blood count alone cannot detect cancer, but it can provide doctors with important information about a patient’s overall health and can help identify potential risk factors associated with certain types of cancer. An FBC should only be used in combination with other tests in order to accurately diagnose cancer.