1st April 2022

A patient is commenced on warfarin following diagnosis of a pulmonary embolism

A patient is commenced on warfarin following diagnosis of a pulmonary embolism due to post-op immobility. He asks you how long he needs to continue taking the warfarin. He has no past medical history other than benign prostatic hyperplasia for which he takes Doxazosin 4mg OD.

Select the SINGLE most appropriate instruction to him from the list below. Select ONE option only.