Abstract
The body burden of lead in the Intact (living) human adult can be estimated, relatively, for the purposes of preventive medicine, by Intravenously injecting 10 ml of a 20% solution of edetate disodium calcium (CaNa2EDTA), after which the total output of the urine during the next 24 hours is collected and analyzed for its lead content The responses of persons who had been subjected to severe occupational exposure to lead up to the time of the injection were judged to be critical, in terms of undue occupational risk, when the urinary output of lead during the next 24 hours amounted to as much as 2 mg.

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