HomeClinical Pathology Thrombin time is.. The conversion of prothrombin to fibrinogen in addition of thrombin Thrombin time is:Extrinsic coagulation pathway (factors).Intrinsic coagulation pathway (factors).The conversion of prothrombin to fibrinogen in addition of thrombin*** Facebook Twitter Share:Thrombin time is.. The conversion of prothrombin to fibrinogen in addition of thrombin Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email