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Proposed Guideline for Dose Assessment After Exposure to I-131 in an Accidental Situation

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Etiquetas

  • accidentes
  • yodo 131
  • arn argentina
  • contaminacion interna

Datos

Origen

Argentina

Idioma

Inglés

Organización

ARN (Argentina)

Autor

Lendoiro, N.; Cabitto, M.; Puerta Yepes, N.; Vázquez, M

Previsualización

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Descripción

The events in which individuals can become internally contaminated with I-131 may cover a wide range of possible situations, ranging from an accidental exposure in a medical, industrial or research environment that involves only a few people to an accident at a nuclear power plant or a radiological terrorist event, with dozens of potentially contaminated individuals. Dose evaluations of these individuals may include the analysis of bioassays: such as the measurement of thyroid, urine and/or nasal samples. These measurements may support medical decisions, which may be based on the projected thyroid dose and / or the effective dose. The purpose of dose assessment in these situations is to provide objective information that contributes to make decisions about follow-up actions after an incident, to comply with legal regulations and to improve conditions in the workplace. In this work, it is proposed a nine-step guide for the assessment of exposure to I-131 after real or suspected abnormal events or in the case of a positive result during triage or routine monitoring. This methodology allows giving recommendations on the type, number and time at which measurements should be made. This guide provides an effective handling of I-131 accidental exposures, contributing in the support for decision-making on follow-up actions (e.g. thyroid blockade with KI), as well as it allows verifying compliance with the legal regulations. XII Congreso Argentino de Seguridad Radiológica y Nuclear. Buenos Aires, Argentina, 3 y 4 de septiembre de 2019