Because of the inability of engineering to eliminate lead exposure at its source, the scientifically proved method of control by Aub and his associates has been applied to lead absorption and its acute toxic episodes in the supervision and treatment of approximately 500 cases of lead exposure, 200 of absorption, and 100 of intoxication.
The present demonstration of these principles has been effected by a diagnostic division of cases into absorption (1) plus severe intoxication requiring hospitalization, (2) plus mild intoxication, not disabling, (3) plus only laboratory signs of intoxication, and (4) without even laboratory signs of latent intoxication.
Except for the first actually disabled group, the other three potentially disabled groups have been treated with the worker at work. Such treatment must (1) start before disability, (2) utilize calcium advisedly but not as a routine, and (3) consider under perfect laboratory and clinical control that artificial deleading is superior
BELKNAP EL. CONTROL OF LEAD POISONING IN THE WORKER. JAMA. 1935;104(3):205–211. doi:10.1001/jama.1935.02760030037009
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