Cieslinski G, Oremek G, Klepzig H
Zentrum für Innere Medizin, Klinikum der Johann-Wolfgang-Goethe-Universität, Frankfurt am Main.
Infusionsther Transfusionsmed. 1993 Jun;20(3):83-8. doi: 10.1159/000222814.
In intensive-care unit (ICU) patients it is common practice to sample blood from central venous lines (CVL). This study was designed to answer the question on how much blood has to be aspirated through the CVL before the actual blood sample is taken to get accurate laboratory findings.
Simultaneous blood samples from a peripheral vein (intraindividual control) and 5-ml portions from a CVL up to 25 ml were analyzed.
5 patients of an internal ICU participated in the study.
For the analyzed 24 different parameters it could be shown that after aspirating 10 ml of blood, the results are comparable to analyses from peripheral vein samples.
Although blood sampling from a CVL--after aspiration of 10 ml blood--results in correct laboratory analyses, this procedure leads to a greater amount of blood loss and, hence, cannot be recommended in long-term ICU treatment.
在重症监护病房（ICU）患者中，从中心静脉导管（CVL）采集血液是常见的做法。本研究旨在回答在采集实际血样之前，需要通过CVL抽取多少血液才能获得准确的实验室检查结果这一问题。
对来自外周静脉的同步血样（个体内对照）和从CVL抽取的5毫升部分直至25毫升进行分析。
5名内科ICU患者参与了该研究。
对于所分析的24个不同参数，可以表明在抽取10毫升血液后，结果与外周静脉血样分析结果相当。
虽然从CVL采血（在抽取10毫升血液后）可得到正确的实验室分析结果，但该操作会导致更多的失血，因此，在ICU长期治疗中不推荐使用。
