A new blood test is so sensitive that it can spot a single cancer cell lurking among a billion healthy ones. This breakthrough in cancer diagnostics is moving one step closer to being available at your doctor’s office.
Right now, this test is being used with cancer patients who would otherwise have to wait months to see if a treatment is working. The current method of using CT scans requires a lot of time. The blood test which is being tested by a subsidiary of Johnson & Johnson will tell doctors with a simple blood test if their prescribed treatment is working.
Down the road this type of test shows some promise in helping to identify cancer much earlier than current tests, such as mammograms and colonoscopies.