單項(xiàng)選擇題

【A1/A2型題】臨床應(yīng)用肝素期間,應(yīng)測定APTT,認(rèn)為肝素過量的APTT范圍是()

A.>30s
B.>60s
C.>90s
D.>120s
E.>150s

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