Flegel T, Hartmann H
Fachbereich Veterinärmedizin, Freien Universität Berlin, Deutschland.
Zentralbl Veterinarmed A. 1995 May;42(3):215-28.
The erythrocyte density separation test (EDT) divides the red blood cells into two groups: younger (less dense) and older (more dense) erythrocytes. Using this test enables veterinarians to assess the erythropoiesis in calves on the basis of the percentage of less dense (younger) red blood cells. Anemic calves, as well as those with pneumonic infections show higher proportions of less dense red blood cells in the EDT than healthy ones. This testing procedure makes it possible to estimate the effects of an oxygen deficiency condition, such as hypoxemia, anemia, shock etc. on the peripheral tissues. So the EDT represents a valuable complement to existing hematological laboratory methods. Carrying out the EDT is very simple and suitable in routine clinical testing.
红细胞密度分离试验（EDT）将红细胞分为两组：较年轻（密度较低）和较年老（密度较高）的红细胞。使用该试验可使兽医根据密度较低（较年轻）红细胞的百分比评估犊牛的红细胞生成情况。贫血犊牛以及患有肺部感染的犊牛在红细胞密度分离试验中显示出比健康犊牛更高比例的密度较低的红细胞。这种检测程序能够估计诸如低氧血症、贫血、休克等缺氧状况对周围组织的影响。因此，红细胞密度分离试验是现有血液学实验室方法的一种有价值的补充。进行红细胞密度分离试验非常简单，适用于常规临床检测。
