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为了早期发现铅对接触者的损害,我们对南通钢丝绳厂30名煏炉工进行诊断性驱铅试验。工龄一年以上17例,5年以上13例,部份工人有程度不同的头昏、乏力、失眠、口内金属味、食欲不振、腹部隐痛、腰背酸痛等临床表现。先检查尿铅,然后肌注20%EDTA-CaNa_2 0.5克,收集24小时尿检查尿铅。尿铅测定用热硝化双硫腙比色法,结果如下:1.驱铅试验前尿铅量为0.002～0.122mg/日,均值±标准误0.0451±0.0050mg/日,标
In order to detect the damage caused by lead to the early stage, we conducted a diagnostic lead-removing test on 30 workers in Nantong Wire Rope Factory. More than one year of service in 17 cases, more than 5 years in 13 cases, some workers have different degrees of dizziness, fatigue, insomnia, mouth metallic taste, loss of appetite, abdominal pain, back pain and other clinical manifestations. First check the urine lead, and then intramuscular injection of 20% EDTA-CaNa2 0.5 grams, urine collected 24 hours to check urine. Determination of urinary lead with thermal nitration dithizone colorimetric method, the results are as follows: 1 lead urinary lead test before the amount of 0.002 ~ 0.122mg / day, mean ± standard error 0.0451 ± 0.0050mg / day, standard