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Genetic
Factor V Leiden (DNA Test)
The DNA test for the most common inherited clotting tendency.
Sample
Blood draw
Quick draw, under 15 min.
Results
5 to 8 days
Plain-language report.
Prep
None for most
Show up as you are.
Locations
See labs
7,000+ labs nationwide
Most take walk-ins.
Blood draw
under 15 min
5 to 8 days
results
None for most
prep
Find a lab near you
Why people check it
Blood clot history·Family clotting history·Before hormone therapy
Blood clot history·Family clotting history·Before hormone therapy