A hospital-grade receptacle is typically indicated by which feature?

• A. Red dot
• B. Blue ring
• C. Green dot
• D. Yellow star

Answer: (C)

In healthcare settings, outlets used for critical equipment carry a clear visual cue that they meet tougher safety and durability standards. A green dot on the receptacle is the typical indicator that it is hospital-grade. This marking signals compliance with hospital-grade requirements, meaning reinforced construction, secure grounding, and the ability to withstand frequent use and cleaning. The other marks (red dot, blue ring, yellow star) are not the standard indicators for hospital-grade receptacles, so they don’t communicate that level of safety and reliability.