When an individual is screened for cancer or their physician feels their symptoms and medical history suggest the possibility of cancer, further testing is required to find cancer or rule cancer out as the underlying cause of their symptoms. A physical exam, personal medical history, and family medical history can tip off a physician to the possibility of cancer or an increased risk of cancer. Numerous
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Complete Blood Count
A complete blood count is a blood test that can assist in the diagnosis and evaluation of several types of cancer. A complete blood count measures the value of three different types of cells in the blood. The leukocyte count or white blood cell count is a measurement of the total number of white blood cells present in a sample of a patient's blood. A white blood cell differential measures the number of all types of white blood cells in a sample of an individual's blood. These white blood cell counts measure the number of basophils, eosinophils, monocytes, lymphocytes, and neutrophils. The red blood cell count measures the number of erythrocytes or red blood cells in the sample of blood. Cancers that affect the bone marrow can cause a low white blood cell count or a low red blood cell count. Some cancers that affect the bone marrow can also lower the number of platelets in the blood. A complete blood count can help diagnose cancers like lymphoma and leukemia.
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