General Medicine General ae7fe2d4 A diabetic female on INH and rifampicin for TB suffers from deep vein thrombosis. She is staed on warfarin but her prothrombin time is not raised. What is the next best step in management of the condition? A Use LMW heparin B Long term heparin therapy C Switch ethambutol for rifampin D Replace warfarin with acesoumarin