Factor V Leiden Mutation
and PT 20210 Mutation
Also known as: Factor V Leiden mutation: Activated protein C (APC) resistance, Factor V R506Q; Prothrombin 20210 mutation: PT G20210A, factor II 20210
Formal name: Factor V Leiden mutation; Prothrombin 20210 mutation
Related tests: Antithrombin; Protein C and Protein S; Homocysteine; Methylenetetrahydrofolate Reductase (MTHFR)
At a Glance
Why Get Tested?
To determine whether you have an inherited gene mutation that increases your risk of developing a venous thromboembolism (VTE)
When to Get Tested?
When you have had an unexplained thrombotic episode, especially when you are less than 50 years old and have no other risk factors
Sample Required?
A blood sample drawn from a vein in your arm
Test Preparation Needed?
None
