论文部分内容阅读
血液在大便中呈两种形态出现1.未改变的:红血球的形态未改变。假若大便中具有适当数量,肉眼即可看出。假若数量甚少,则仅可以显微镜检查来认出。2.改变了的:这种血液因为已在肠胃道中停留了一个比较长久的时期,已被分解,即一般称为黑色粪者。在新生儿中,吞入少至2.6毫升的血,在7—17小时内即可产生柏油样大便。而成年人在肠胃道中常需要50—100毫升的血才能产生柏油样大便。若较小量的血进入肠胃道中,则仅可用化学试验方法来查出。在研究大便中是否含有血液时,若大便呈红色应经常想到非出血性的原因,如患者是否曾吞服红萝卜、红墨水、
Two forms of blood appear in the stool 1. Unchanged: The morphology of red blood cells has not changed. If there is an appropriate amount of stool, the naked eye can be seen. If the amount is small, it can only be identified by microscopic examination. 2. Changed: This blood has been decomposed, because it has been in the gastrointestinal tract for a longer period of time, which is commonly referred to as black droppings. In newborns, as little as 2.6 ml of blood is swallowed and tarry stools are produced within 7-17 hours. Adults in the gastrointestinal tract often need 50-100 ml of blood to produce tarry stools. If a small amount of blood into the gastrointestinal tract, you can only use chemical tests to detect. When studying whether stool contains blood, if the stool is red, non-hemorrhagic reasons should often be considered, such as whether the patient has swallowed carrots, red ink,