Certification Board for Sterile Processing and Distribution (CBSPD) Sterile Processing Technician Practice Exam

Using aluminum foil is a standard method to test the functioning of an ultrasonic cleaner due to its unique properties. When placed in the cleaner, the aluminum foil will exhibit the effects of cavitation, which is the process where ultrasonic waves create tiny bubbles in the liquid. If the cleaner is operating correctly, the aluminum foil will show small punctures or a pattern of holes after the test cycle, indicating that the ultrasonic waves are effectively penetrating the cleaning solution and working properly. This testing method is advantageous because aluminum foil is readily available, easy to manipulate, and its reaction to ultrasonic cleaning is immediate and observable. The material’s thinness allows it to be influenced by the ultrasonic waves effectively, providing clear feedback on the cleaner's operation. This simplicity makes aluminum foil an excellent choice for routine checks on the cleaner's efficiency.