DecontaminationPregunta 8 de 100
A technician is orienting a student at the ultrasonic cleaner and is asked what actually removes the soil from the instruments. What is the correct answer?
a.Thermal disinfection at the final rinse temperature
b.Chemical oxidation of protein by the detergent
c.High-velocity water jets directed at instrument surfaces
d.Cavitation, in which microscopic bubbles form and implode against instrument surfaces
Explicación
High-frequency sound waves create low-pressure zones where tiny bubbles form and then collapse, and the energy released by that implosion dislodges fine soil from crevices, box locks, and serrations. Thermal disinfection and spray-jet impingement are mechanisms of washer-disinfectors, not ultrasonic units. Detergent assists cavitation but is not itself the cleaning action.
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