论文部分内容阅读
大便潜血试验,是检查消化系统出血的常用方法之一这项检查对于诊断消化系统的溃疡和恶性肿瘤具有十分重要的临床意义。大便潜血试验血红蛋白中含有的铁质,有过氧化酶的作用,能够分解过氧化氢使之放出氧气,氧气又可使联苯胺或愈创木脂氧化,出现蓝色。颜色变蓝出现的时间可说明大便中潜血的严重程度。根据这种原理,临床上建立了数种大便潜血试验的方法。这些方法的灵敏性差
Fecal occult blood test is one of the commonly used methods to check the digestive system bleeding. This test is of great clinical significance for the diagnosis of digestive ulcer and malignant tumor. Fecal occult blood test hemoglobin contains iron, a peroxidase role, to decompose hydrogen peroxide so that the release of oxygen, oxygen can make benzidine or guaiac oxide oxidation, appear blue. The time it takes for the color to turn blue indicates the severity of occult blood in the stool. According to this principle, clinically established several methods of fecal occult blood test. The sensitivity of these methods is poor