Cancer blood test along with other laboratory tests can actually help doctors at American Oncology Institute diagnose blood cancer. The most common test that is prescribed Complete blood count (CBC). It measures the amount of various types of blood cells in a sample of your blood. Blood cancers can also be detected using this method if too many or too few of a type of affected blood cell or abnormal cells are found. Further, depending on the finding a doctor may suggest a bone marrow biopsy which usually helps to confirm the diagnosis of a blood cancer.
A test to examine various proteins in your blood (electrophoresis) can aid in detecting certain abnormal immune system proteins (immunoglobulins) that are sometimes elevated in people with multiple myeloma. Additionally,bone marrow biopsy is used to confirm a suspected diagnosis.
Tumor marker tests are another diagnosis to detect cancer. Tumor markers are chemicals made by tumor cells that can be detected in blood which, in most of the cases, are also produced by some normal cells body. This limits the potential for tumor marker tests to help in cancer diagnosis.