论文部分内容阅读
铅中毒早期诊断的研究,主要是从:(1)临床上寻找特异的早期体征;(2)生物标本中直接测定铅的含量;(3)检查铅对机体卟啉代谢产物和酶的影响;(4)组织和形态学上观察异常红细胞的数量等四个方面来进行的。现仅从已看到的一些材料,在这几方面作些肤浅的探讨。一、机体铅吸收后的早期体征视网膜点彩(Stippling of retina)由Sonkin(1963)提出,他用眼底镜检查铅接触者,发现有一些闪耀的、散在的、灰色的色素颗粒,分布在围绕视神经盘边缘的视网膜上,并认为这种现象,常出现在尿铅排泄异常之前,是一个可以信赖的铅中毒早期体征,而且
The early diagnosis of lead poisoning, mainly from: (1) the clinical look for specific early signs; (2) the direct determination of lead in the biological sample content; (3) to check the impact of lead on the body of porphyrin metabolites and enzymes; (4) organization and morphological observation of the number of abnormal red blood cells and other four aspects to carry out. Now only from some of the materials have been seen in these areas for some shallow discussion. I. Early signs of body lead absorption Stippling of retina was proposed by Sonkin (1963) who examined lead contacts by ophthalmoscopy and found some shining, scattered, gray pigment particles distributed around Optic nerve disc edge of the retina, and that this phenomenon, often in the presence of abnormal urinary lead excretion, is a reliable early signs of lead poisoning, and