PROBLEM TO BE SOLVED: To provide a blood coagulation accelerator-containing composition for coagulating blood in a short period of time, and restraining the coagulation of blood from being instantaneously brought about simultaneously with the production of air bubbles so as to foam blood clots, for example, when blood is housed in a blood examination vessel, and also to provide the blood examination vessel.SOLUTION: The blood coagulation accelerator-containing composition 4 contains a blood coagulation accelerator for accelerating the coagulation of blood and a blood platelet flocculation suppressing agent for suppressing the flocculation of blood. The blood examination vessel 1 constituted so that the blood coagulation accelerator-containing composition 4 is housed in a tubular vessel 2 and a plug 3, is airtightly attached to the opening 2a of the tubular vessel 2.COPYRIGHT: (C)2009,JPO&INPIT【課題】血液を短時間で凝固させることができ、例えば血液検査用容器に血液を収容した際に、気泡の発生と同時に血液の凝固が瞬時に起こり、泡状の血餅が生成されるのを抑制することができる血液凝固促進剤含有組成物、及びそれを用いた血液検査用容器を提供する。【解決手段】血液の凝固を促進する血液凝固促進剤と、血小板の凝集を抑制する血小板凝集抑制剤とを含む血液凝固促進剤含有組成物4、並びに該血液凝固促進剤含有組成物4が管状容器2内に収容され、管状容器2の開口2aに栓体3が気密的に取り付けられている血液検査用容器1。【選択図】図1