出血时间常用于出血性疾病的一种过筛试验,传统方法有Duke及Ivy氏法。一般认为,它的延长与毛细血管的结构与功能、血小板质与量、血浆VWF、血浆凝血酶原与纤维蛋白原含量等的异常有 Bleeding time is often used in a screening test for bleeding disorders. The traditional methods are Duke and Ivy’s. Is generally believed that its extension and the structure and function of capillaries, platelets and quantity, plasma VWF, plasma prothrombin and fibrinogen content and other abnormalities have