Oregon Written Tattoo Practice Test

What is the primary function of an ultrasonic cleaner?

1. To sterilize instruments

2. To break down grime and dirt from reusable instruments

3. To dry instruments after sterilization

4. To disinfect surfaces in the workspace

The correct answer is: To break down grime and dirt from reusable instruments

An ultrasonic cleaner's primary function is to break down grime and dirt from reusable instruments through the use of high-frequency sound waves. These sound waves create microscopic bubbles in a cleaning solution, a process known as cavitation. When these bubbles collapse, they produce powerful cleaning action that can effectively reach into small crevices and difficult-to-clean areas on instruments. This makes it especially valuable in the tattoo industry, where maintaining the cleanliness of equipment is crucial for health and safety. While sterilization is an important process, ultrasonic cleaners do not perform sterilization themselves; they are typically part of a larger cleaning and sterilization workflow. They are considered preliminary cleaning devices that prepare instruments for further sterilization procedures, rather than a standalone solution for completely eliminating all microbial life. Moreover, drying instruments or disinfecting surfaces are separate functions requiring distinct methods and tools, highlighting the focused role of ultrasonic cleaners in specifically breaking down dirt and debris.