Given the test results, am I susceptible to having factor V Leiden?

The test result received was:
Activated C Resistance: 2.5 (RI: >2.5)

I understand that the Activated C Resistance test is just a screening test for factor V Leiden, but does this mean that I probably have the disorder or that because I'm in the reference interval, I don't have the disorder? Thanks.
The only other results given:

Antithrombin: function 100% (RI: 85-170%)
Protein C: function 86% (RI: 70-140%)
Total Protein S: antigen 95% (RI: 70-160%)

Diagnosed six months ago with a venous thrombosis. One prior to the thrombus, I started taking the oral contraceptive pill. Also, I've heard about the Prothrombin G20210A Mutation and was trying to rule this out.
*one month prior to thrombus
 
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