Had brachial artery blood clot complication after brachial accessed catheter angiogram. no heart disease.clot was removed surgically. why do i have to be on plavix, eliquis, and aspirin now? why am i at a higher risk for another blood clot?

Injury to artery?: I assume the anti-coagulation is to be temporary and that some other clotting propensity has not been discovered. It is probable that the initial catheterization and the surgery to remove the clot has produced minor injury to the artery wall, and you will require anticoagulation until that minor damage has healed. If you have further questions, you should ask the doctor prescribing the thinner!