…Blood is composed of 60-70% plasma and 30-40% red blood cell components, with the plasma fraction containing 7-8% protein and the red blood cell fraction containing 30-40% protein. Because the traditional bloodletting method is prone to contamination, in recent years, a method has been used in which blood is collected by inserting a hollow sticking knife into a blood vessel and reducing the pressure. Since blood will clot if left as is, an anticoagulant such as sodium citrate is added, and the blood is centrifuged to separate it into plasma and red blood cell fractions. … *Some of the terminology that refers to "hollow sticking knife" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…血液は60~70%の血漿成分と30~40%の赤血球成分からなり,血漿画分は7~8%,赤血球画分は30~40%のタンパク質を含んでいる。従来の放血法による収集は汚染されやすいので,近年では管のついたナイフhollow sticking knifeを血管にさし込み,減圧して集める方法がとられるようになった。血液はそのままでは凝固するのでクエン酸ナトリウムのような凝固防止剤を加えて遠心分離され,血漿と赤血球画分に分けられる。… ※「hollow sticking knife」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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