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循环血液量是表明机体血液动力状况的最要指标之一。大部份关于正常和病理状态下循环血液量的资料是藉助于临床通用的,经改进的注射颜料的方法而取得的。由于颜料常被网状组织吸附,因而用这种方法得出的结果往往是不准确的。近十年来为了测定循环血液量,经过深入研究提出了应用人工放射性同位素的方法。这种方法与上述方法相反,循环血液内被标记的红血球浓度在较长时间内都不会发生变化和,因而可以得到比较精确可靠的结果。我们在研究烧伤疾患时,采用了这种方法来测定烧伤时血液浓缩的程度。
Circulating blood volume is one of the most important indicators of the body’s hemodynamic status. Most of the data on circulating blood volume under normal and pathological conditions is obtained by means of a clinically generic and improved method of injecting a pigment. As the pigment is often adsorbed by the reticular tissue, the results obtained with this method are often inaccurate. In order to measure circulating blood volume in the past decade, the method of applying artificial radioisotope has been put forward after further study. This method contrary to the above method, circulating blood marked erythrocyte concentration does not change over a long period of time and, therefore, can be more accurate and reliable results. When we studied burns, we used this method to determine the degree of blood concentration at the time of burn.