Medical Device Reprocessing Association of Ontario (MDRAO) Practice Exam

Gas Plasma sterilization is known for several key characteristics, primarily its low-temperature operation, which is advantageous for sterilizing heat-sensitive medical devices and instruments. This method typically operates at temperatures below 60°C, making it compatible with a wide range of materials that cannot withstand traditional steam sterilization methods. One of the essential components of Gas Plasma sterilization is the use of hydrogen peroxide, which is vaporized and then ionized to form a plasma state. This process is effective in destroying a broad spectrum of microorganisms. The sterilization cycle effectively utilizes this plasma to achieve sterilization without leaving harmful residues behind. When it comes to the inclusion of moisture, Gas Plasma sterilization actually operates best in a dry environment. The presence of moisture can interfere with the sterilization process and may reduce the efficacy of hydrogen peroxide. Therefore, the fact that it does not use moisture as a feature is a defining characteristic of this method. In summary, the absence of moisture is a notable aspect of Gas Plasma sterilization, while the other options accurately reflect its operational features and effectiveness in sterilizing surgical instruments.