关于铅中毒的诊断与预防的各种实验室检验法的比较价值曾引起一些争论。当前的看法,认为在反映近期接触方面,血铅含量(“Pb-B”)比尿铅含量(“Pb-U”)为优,而从尿中排泄的尿粪卟啉浓度(“GP-U”)或尿δ-氨基乙酰丙酸浓度(“ALA-U”)则为反映生物反应的最好方法。这些检验对铅工人的检查已经渐次代替了点彩细胞或网状红细胞计数的方法。然而另一个经典检验法,即血红蛋白值(“Hb”)虽然不是特异性的,而且与其他铅试验的相 The comparative value of various laboratory tests on the diagnosis and prevention of lead poisoning has caused some controversy. The current perception is that blood lead (Pb-B) is superior to urine lead (Pb-U) in reflecting near-term exposure and urinary excretion of urine coproporphyrin (GP- U “) or urinary δ-aminolevulinic acid concentration (” ALA-U “) is the best way to reflect the biological response. Inspections of lead workers by these tests have gradually replaced methods of spotting cells or reticulocyte counts. Yet another classic test, the hemoglobin value (”Hb"), though not specific, is associated with the phase of other lead tests