How are spaces classified in ICRA, and what criteria determine classification?

• A. Spaces are classified by size only.
• B. Spaces are classified by color of walls.
• C. Infection risk classification: spaces are categorized as low, medium, or high based on patient vulnerability, expected activity, and potential contaminant generation; higher-risk areas require more stringent containment.
• D. Spaces are classified by staff preference.

Answer: (C)

In ICRA, spaces are classified based on infection risk, using three levels: low, medium, and high. The criteria that determine where a space fits are patient vulnerability, the expected activity in that space, and the potential for contaminant generation. Patient vulnerability means how susceptible the people in that space are to infection—immunocompromised or severely ill patients raise the risk. Expected activity covers what will happen there, such as procedures or high patient turnover that can expose staff or other patients. Potential contaminant generation looks at what could be produced—airborne, droplet, or contact hazards from the procedures or materials used in that space.

Higher-risk areas require more stringent containment measures tailored to those risks, while lower-risk areas need less; this is not driven by the size of the space, wall color, or staff preference.