What are the methods by which contamination can enter the body?

The correct answer identifies critical pathways through which radioactive contamination can enter the body: inhalation, ingestion, absorption, and cuts.

Inhalation occurs when contaminated particles or gases are breathed into the lungs, where they can be absorbed into the bloodstream. Ingestion involves swallowing contaminated food or drink, which can also lead to internal contamination. Absorption refers to the transfer of contaminants through the skin or mucous membranes into the bloodstream, making it a significant route of entry. Cuts or open wounds can also allow contaminants direct access to internal tissues and the bloodstream, increasing the risk of internal exposure.

Understanding these pathways is essential for implementing effective safety measures and protocols to minimize the risk of contamination for radiation workers. This knowledge helps inform practices such as the use of personal protective equipment, proper hygiene methods, and the monitoring of environments for potential contamination sources.