What information should be included on signage for controlled areas and doors in a radiology department?

• A. Area name only.
• B. PPE requirements only.
• C. Area name, hazard symbol, contact information for RSO, access restrictions, PPE requirements.
• D. Customer service phone.

Answer: (B)

Signage for controlled areas in a radiology department should clearly communicate the presence of radiation and provide actionable information to anyone who approaches the door. The best signage includes several key elements: the area name, the radiation hazard symbol, access restrictions, contact information for the Radiation Safety Officer (RSO) or the supervising department, and the PPE requirements. Each piece serves a purpose. The area name identifies where you are and helps staff verify the location, while the hazard symbol immediately signals a radiation risk to anyone nearby. Access restrictions tell who is allowed to enter, reducing unauthorized or unnecessary exposure. The RSO contact information provides a direct resource for questions, emergencies, or guidance, and PPE requirements tell entrants what protective gear must be worn before entering. If signage only lists PPE requirements, people would have a partial view of the risk and may not know who to contact, whether entry is allowed, or what the area contains. Including all elements ensures there is both awareness of the hazard and clear, actionable instructions to protect people. In practice, signage should be placed at entry points, be legible from a distance, and comply with regulatory standards for radiation warning signs.