Certification Board of Infection Control and Epidemiology (CBIC) Practice Exam 2026 - Free CBIC Practice Questions and Study Guide

The correct answer emphasizes that the thoroughness of cleaning is crucial in infection control practices. Effective cleaning removes dirt, organic matter, and microorganisms from surfaces, which is a foundational step before disinfection can take place. If a surface is not cleaned thoroughly, any disinfectant applied may not be effective because organic material can inhibit the action of the disinfectant.

While the duration of disinfection is important – as certain disinfectants require specific contact times to be effective – if the surface is not properly cleaned first, the duration may not matter. Therefore, ensuring thorough cleaning sets the stage for successful disinfection, underscoring its importance in the infection control process.

The other options highlight different considerations but do not negate the fundamental principle that without thorough cleaning, disinfection efforts may be compromised.