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高血浆尿素浓度是消化道出血的一个早为人所熟知的特征,其增高的程度与失血量有关。至于增高的机制则迄今尚未明确,但有一个假说认为是与肝脏对吸收过多的氨基酸进行分解代谢有关。如果这个假说是确切的话,则发生于远离吸收部位的出血便不会使血浆尿素浓度增高。为此,本文研究了血浆尿素浓度对鉴定消化道出血部位的价值。作者复查了5年来收入普通内科和外科病房的急性消化道出血病例,但有下列情况则不收集在内:呕
High plasma urea concentration is a well-known feature of gastrointestinal bleeding, the degree of increase associated with blood loss. As for the mechanism of increased up to now is not yet clear, but there is a hypothesis that the liver and excessive absorption of amino acids catabolism. If this hypothesis is accurate, bleeding that occurs away from the site of absorption does not increase plasma urea. To this end, this article studies the value of plasma urea concentration in the identification of gastrointestinal bleeding sites. The authors reviewed acute gastrointestinal bleeding for five years in general medical and surgical wards, but did not collect the following cases: vomit