New York Tattoo License Practice Test

What type of device is used for instrumental cleaning but does not sterilize?

1. Ultrasonic cleaning device

2. Autoclave

3. Dry heat sterilizer

4. Handheld cleaner

The correct answer is: Ultrasonic cleaning device

An ultrasonic cleaning device is specifically designed to clean instruments by agitating a cleaning solution, which helps to dislodge contaminants, dirt, and blood from surfaces and crevices. The process uses high-frequency sound waves to create cavitation bubbles in the solution, leading to effective cleaning. However, it is important to note that while it can significantly reduce the bioburden on instruments, it does not achieve sterilization. Sterilization involves the elimination of all microorganisms, including spores, which is beyond the capability of an ultrasonic cleaner. In contrast, autoclaves and dry heat sterilizers are designed specifically to reach the high temperatures and pressures necessary for sterilization, ensuring that all microbial life is destroyed. Handheld cleaners, while useful for surface cleaning, do not replace the thoroughness of ultrasonic cleaning and are also not capable of sterilization. Thus, the choice of the ultrasonic cleaning device accurately identifies the correct device that facilitates cleaning without the ability to sterilize.