Multi-Cancer Blood Test in San Francisco
One blood draw that looks for signals from many cancers at once, and 3 clinics in San Francisco that list it.
- Time
- One visit A single blood draw
- What you do
- Give a blood sample No scan
- You get
- Signal found or not found With a likely origin if found
A multi-cancer blood test looks for traces that tumours can release into the blood, such as fragments of DNA, and checks for a signal from many cancer types at once. Where it finds one, it may suggest where in the body the signal comes from.
It is an emerging test, and none has been authorized by the FDA. A positive result needs imaging and other tests to confirm it, a negative result does not mean no cancer is present, and it is offered in addition to guideline cancer screening rather than instead of it. Multi-cancer early detection blood testing is offered under brands like Galleri.
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Multi-Cancer Blood Test: common questions
Which clinics in San Francisco list multi-cancer early detection blood tests?
3 in our San Francisco guide: Biohackr Health, San Francisco, My Doctor Medical Group and Human Longevity, South San Francisco.
What happens after a positive result?
More tests, which can include imaging and sometimes a biopsy. In published research, many positive results were not followed by a cancer diagnosis.
Has it been shown to lower cancer deaths?
Not yet. Large trials are still running, which is why it sits alongside guideline screening rather than replacing it.