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critical organ


Definition: the organ or physiologic system that for a given source of radiation would first reach its legally defined maximum permissible radiation exposure as the dose of radiation is increased; the kidney is the critical organ, receiving the most radiation, when Tc-99m dimethylsuccinic acid is given.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.