ACTIVATED PROTEIN C RESISTANCE TESTING ALGORITHM



Algorithm for the diagnosis of the Factor V Leiden mutation and APC Resistance

APC resistance testing algorithm

*The most commonly used screening assay is PTT-based.

Some alternative screening assays are relatively insensitive to lupus anticoagulants

As hirudin or argatroban anticoagulation prolongs the PTT, a DNA test would be recommended if these anticoagulants are present

Algorithm for the diagnosis of the factor V Leiden mutation and activated protein C resistance.

Used with permission from Laposata and Van Cott.

Laposata M, Van Cott EM. How to work up hypercoagulability. CAP Today. 2000;14:24-26.


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