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BCPS study guide
anticoagulation
Question | Answer |
---|---|
clotting factors inhibited by warfarin | II, VII, IX, X and protein C and S (anticoagulants) |
half life of factor II | 72 hours |
half life of factor VII | 6 hours |
half life of factor IX | 24 hours |
half life of factor X | 36 hours |
in acute VTE, how long should you overlap warfarin and LMWH. why is this overlap necessary | 5 days and INR 2+ for 24 hours. do this in order to fully suppress factor II. if not, will have suppressed protein C and S which act as anticoagulants but still have clotting from factor II which leads to a hypercoagulable state. |
gene mutations associated with warfarin and what they alter | VKORCI - alters warfarin sensitivity 2C9 - alters half life and metabolism |
warfarin pregnancy category and breastfeeding | preggers category X and ok with breastfeeding |