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目前沿用的铅吸收和铅中毒检验指标主要为尿铅、尿粪卟啉、血中点彩或碱粒红细胞。文献记载尿铅及血铅浓度与所接触的空气中铅浓度密切相关,而尿粪卟啉、血中点彩或碱粒红细胞又缺乏特异性,故尿铅仍不失为铅中毒和铅吸收的主要诊断指标。1974年卫生部公布的铅中毒诊断标准中亦规定了正常人尿铅量不超过0.08毫克/升。但是我们在实际工作中,有时会遇到一些接铅时间不长的新工人,普查时尿铅增高,而进行驱铅治疗时尿铅总排出量并不很高。反之,一些在高浓度下从事铅作业多
Currently used lead absorption and lead poisoning indicators are mainly urine lead, urine coproporphyrin, blood spot color or alkaline erythrocyte. The literature records that urinary lead and blood lead concentrations are closely related to the concentration of lead in the air that is exposed to the urine, while urinary excretion of porphyrin, blood spot color or alkaline erythrocyte erythrocytes are also lack of specificity. Therefore, urinary lead is still the main cause of lead poisoning and lead absorption Diagnostic indicators. The Ministry of Health announced in 1974 the diagnostic criteria for lead poisoning also provides that normal urine lead content does not exceed 0.08 mg / l. However, in actual work, we sometimes encounter some new workers who take lead for a short period of time. Urine lead increased when the census was conducted. However, urinary lead excretion was not very high during the lead-removing treatment. Conversely, some are engaged in lead work at high concentrations