PTT

partial thromboplastin time (test)
部分トロンボプラスチン(プロトロンビン活性化物質)時間(試験).
partial thromboplastin time (test); elevated PTTs are caused by heparin release from mast cells in an emergencyanaphylactic reaction; in hematology; e.g. a-PTT(activated PTT), the normal range of which in plasma is 22

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