I am on warfarin for pulmonary embolisms in both lungs coming from a large clot in my groin, which is still there. When I went to the ER, they said I had sticky blood. The doctor said there was no such thing. Then I ran into this message board. I had genetic testing, but I wasn't taken off of warfarin. Should I have been taken off of warfarin for the testing, or did it matter?