红细胞比积是诊断贫血的重要指标之一,但传统的方法需静脉采血,较难接受。万景华等1979年报导了用微量末梢血测定红细胞比积的方法(万景华等。微量血比积测定在血液学诊断上的应用。输血及血液血1979;3(1) Hematocrit is an important indicator of anemia diagnosis, but the traditional method of intravenous blood collection, more difficult to accept. Wan Jinghua et al reported in 1979 the use of trace amount of peripheral blood hematocrit method (Wan Jinghua et al. Trace amount of blood volume determination in the application of hematological diagnosis. Blood transfusion and blood 1979; 3 (1)