略語大辞典 [Med] 23 PT prothrombin time (test) プロトロンビン時間(検査). プロトロンビンは血液凝固第二因子.prothrombin time (test); for diagnosis of DIC(disseminated intravascular coagulation); the normal range in plasma or in serum is 9-12 seconds; ref. PTT(partial thromboplastin time); in hematology; [Med:Imm]. 丸善「略語大辞典」JLogosID : 11856763