What are Protective Action Guides (PAGs) and how are they used in radiological emergencies?

• A. PAGs are action-level guidelines for protective measures (evacuation, sheltering, decontamination) during radiological events.
• B. PAGs regulate medical imaging settings in hospitals.
• C. PAGs determine waste disposal procedures for radiological materials.
• D. PAGs specify lab coat materials for radiological work.

Answer: (A)

Protective Action Guides are action-level guidelines that translate radiological information into recommended protective measures for the public and responders during radiological events. In an emergency, authorities estimate potential doses or contamination from a release and compare them to PAG thresholds. When a PAG threshold is reached, protective actions are triggered, such as evacuating people from the affected area to reduce external exposure, sheltering-in-place to limit inhalation and external dose, and initiating decontamination to reduce contamination. PAGs provide rapid, consistent decision-making across agencies and timeframes, focusing on minimizing exposure and ingestion risks rather than regulating imaging, waste disposal, or equipment. They guide actions in the different phases of an incident as information evolves.