110 workers of a storage battery plant with relatively high lead dust exposure were investigated. Different parameters indicating lead exposure were used. Diagnostic lead excretion tests were carried out in 11 cases of suspected lead poisoning. Urinary lead, delta aminolevulinic acid and coproporphyrin may be used as early diagnostic indicators with normal limits of 0.08 mg/l, 6 mg/l and 150 μg/l. Hair lead may be used as an indicator of lead absorption. Blood ALA-dehydrase is highly Sensitive to the effect of lead but is not suitable as a diagnostic indicator, it may be used in monitoring environmental lead pollution. Hemoglobin and basophilic stippling cell count are not specific to lead effect. In cases suspected of lead poisoning, diagnostic lead excretion test is valuable to confirm the diagnosis.
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[1]
Relationship Between Urinary δ -Aminolevulinic Acid Excretion and the Inhibition of Red Cell δ -Aminolevulinate Dehydratase by Lead[J] . R. Lauwerys,J. P. Buchet,H. A. Roels,D. Materne. Clinical Toxicology . 1974 (4)
[1]
Relationship Between Urinary δ -Aminolevulinic Acid Excretion and the Inhibition of Red Cell δ -Aminolevulinate Dehydratase by Lead[J] . R. Lauwerys,J. P. Buchet,H. A. Roels,D. Materne. Clinical Toxicology . 1974 (4)