Assessment of a Cerium-Praseodymium-144 Inhalation Case

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A case involving an acute exposure to a 144Ce-144Pr-contaminated atmosphere is presented with a discussion of the treatment and evaluation of data collected out to 800 days post-intake. Treatment included irrigation of the upper nasal passages with normal saline, nebulization with normal saline mist, and intravenous DTPA therapy. Assessment of the deposition and the resulting dose commitment was based on in vivo measurements and excretion data. The initial pulmonary burden, which cleared with three distinct half-times, was estimated at 2.1 mikroCi of 144Ce.

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