Multi-cancer early detection blood test
Looks for DNA shed by tumors to flag many cancer types at once. Promising - but not a replacement for standard screening.
TypeBlood test
HowStandard blood draw.
How oftenOptional; often yearly.
Before—
WhoAdults curious about additional screening, usually 50+.
A promising test — with important gaps
These tests look for signals from many cancers - including some without routine screening. But they miss many early cancers and haven’t yet been shown to save lives.
How it works
“What does it look for?”
Fragments of DNA shed by tumors into the blood.
Signal
A negative result
“Does it mean no cancer?”
No - it misses many early cancers. Keep up standard screening.
False reassurance
Where it fits
“Should I use it?”
Only on top of standard screening, never instead of it.
Add-on only
Is it right for you?
How it’s measured
Cell-free DNA methylation test
The main technology used.
The full picture
What is it?
A blood test for tumor DNA signals.
What type of test is it?
A blood biomarker test.
What does it measure?
Cell-free DNA patterns linked to cancer.
Why might someone consider it?
To detect several cancers from one test.
Who is it most relevant for?
Curious adults, usually 50+.
How is it performed?
A blood draw.
How often might it be considered?
Optional.
What can the result help you understand?
Whether a cancer signal is present and its likely origin.
What are its limitations?
Misses many early cancers; false positives lead to scans.
What should it be viewed with?
Standard screening and family history.
Where to get it
Through your provider
The simplest route - often covered when there’s a clear reason.
Lab services
e.g. Quest Diagnostics, Labcorp.
Direct-to-consumer panels
e.g. Function Health, InsideTracker.
Names are examples only, not endorsements. Your provider can often order the same test - and help interpret it.
Connected to
Questions to ask your provider
- How would this fit with my regular screening?
Ziva Health
One test is a snapshot. Ziva shows the whole story.
Ziva brings your lab results, wearables and daily readings together - and Isabella tells you what’s changing and what to ask your provider next.
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Being listed doesn’t mean everyone needs this test. Educational only — not medical advice. Results should be interpreted with a qualified clinician. ← Back to Know What to Test