What blood tests confirm lymphoma?
There is no single blood test that can confirm lymphoma. However, blood tests can be useful in helping to diagnose and monitor lymphoma. Blood tests that may be ordered for a person suspected of having lymphoma include:
Complete blood count (CBC): This test measures the levels of different types of blood cells, including red blood cells, white blood cells, and platelets. In people with lymphoma, there may be abnormalities in these levels, such as a low red blood cell count (anemia), low platelet count (thrombocytopenia), or high white blood cell count (leukocytosis).
Blood chemistry tests: These tests measure the levels of various substances in the blood, such as electrolytes, liver enzymes, and kidney function markers. Abnormalities in these levels can indicate lymphoma or other conditions.
LDH (lactate dehydrogenase) test: LDH is an enzyme that is produced by many different types of cells, including cancer cells. High levels of LDH in the blood can be a sign of lymphoma or other cancers.
ESR (erythrocyte sedimentation rate) test: This test measures how quickly red blood cells settle to the bottom of a test tube. In people with lymphoma or other inflammatory conditions, the ESR may be elevated.
Immunoglobulin levels: Immunoglobulins are proteins produced by the immune system. Abnormal levels of immunoglobulins in the blood can be a sign of lymphoma or other immune system disorders.
It is important to note that these blood tests are not definitive for the diagnosis of lymphoma. A definitive diagnosis of lymphoma usually requires a biopsy of an affected lymph node or other tissue, which can then be examined under a microscope to confirm the presence of cancer cells.
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