What are routes of internal exposure?

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Study for the NANTeL Radiation Worker Training Test. Learn with multiple choice questions covering essential safety procedures. Equip yourself with answers, hints, and explanations. Prepare thoroughly for your certification exam!

Multiple Choice

What are routes of internal exposure?

Explanation:
Internal exposure happens when radioactive material gets inside the body and irradiates tissues from within. The main routes are breathing it in (inhalation), swallowing or drinking contaminated material (ingestion), and absorption through the skin, including entry through open wounds or injuries that allow material to enter the bloodstream. These pathways bring radionuclides inside the body, creating dose from the inside rather than from outside. The other options describe external exposure or scenarios that don’t involve material inside the body, so they don’t represent internal exposure.

Internal exposure happens when radioactive material gets inside the body and irradiates tissues from within. The main routes are breathing it in (inhalation), swallowing or drinking contaminated material (ingestion), and absorption through the skin, including entry through open wounds or injuries that allow material to enter the bloodstream. These pathways bring radionuclides inside the body, creating dose from the inside rather than from outside. The other options describe external exposure or scenarios that don’t involve material inside the body, so they don’t represent internal exposure.

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