Authors: Mary A. Williamson Mt(ascp) Phd,L. Michael Snyder Md
CYP2C9
*1 (normal)
CYP2C9
*2 (c.430C>T; Arg144Cys)
CYP2C9
*3 (c.1075A>C; Ile359Leu)
VKORC1
*1 (normal)
VKORC1
*2 promoter variant (c.–1639G>A)
Normal values:
CYP2C9
*1/*1
VKORC1
*1/*1
Use
Initiating warfarin (Coumadin) therapy
Optimizing dosing for warfarin
Limitations
The results of a genetic test may be affected by DNA rearrangements, blood transfusion, bone marrow transplantation, or rare sequence variations.
ANTICONVULSANTS
*