Description
Tumor marker tests measure the levels of specific substances in the blood or other body fluids that are produced by cancer cells or by the body in response to cancer. These markers can help diagnose cancer, monitor treatment response, and detect recurrence.
How the Test is Done?
A blood sample or other body fluid (such as urine) is collected from the patient. The sample is then analyzed in a laboratory to measure the levels of tumor markers specific to certain types of cancer. Different markers are associated with different cancers, so the choice of marker depends on the suspected cancer type.
Preparation Required
No special preparation is typically needed for tumor marker tests. However, it’s important to inform your healthcare provider about any medications or health conditions that might affect the results. For some tests, fasting or other specific instructions might be given.
Significance of the Results
Tumor marker levels can help in diagnosing cancer and determining its stage. They also monitor how well the treatment is working and check for recurrence after treatment. Elevated or abnormal levels of tumor markers can indicate the presence of cancer or other conditions, but they are not definitive on their own. Further diagnostic tests may be required for a complete diagnosis.
