Yes, blood tests can be used to diagnose leukemia. Leukemia is a type of cancer of the blood and bone marrow, and it is caused by an abnormal production of white blood cells. Blood tests are used to detect the presence of abnormal white blood cells, which are a sign of leukemia.
A complete blood count (CBC) is the most common blood test used to diagnose leukemia. The CBC measures the number of white blood cells, red blood cells, and platelets in the blood. If the CBC shows a high number of white blood cells, it can indicate the presence of leukemia. Doctors may also use other tests such as a peripheral blood smear to look for features of leukemia cells, and a bone marrow biopsy to confirm the diagnosis.
Blood tests are also used to monitor a person’s response to leukemia treatment. The CBC is used to measure the number of white blood cells in the blood before and after treatment. If the number of white blood cells decreases after treatment, it can indicate that the treatment is working.
In summary, blood tests can be used to detect and monitor leukemia. The CBC is the most common test used to diagnose and monitor leukemia. Other tests may also be used to look for features of leukemia cells or confirm the diagnosis.