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

Which sterilization method works with tyvek pouches and certain rigid sterilization containers?

1. Steam

2. Ethylene Oxide

3. Low-Temperature Gas Plasma (LTGP)

4. Dry heat

The correct answer is: Low-Temperature Gas Plasma (LTGP)

Low-Temperature Gas Plasma (LTGP) is the correct method for sterilizing items packed in Tyvek pouches and some rigid sterilization containers. This method uses low-temperature hydrogen peroxide gas plasma to effectively sterilize heat- and moisture-sensitive medical instruments, making it suitable for materials that cannot withstand the higher temperatures of steam sterilization or dry heat. Tyvek pouches are designed specifically for use with LTGP, as the material allows the gas to penetrate effectively while maintaining the sterility of the contents. This permeability is essential for achieving a successful sterilization cycle. Other sterilization methods, while effective for various applications, do not share this compatibility. For instance, steam sterilization operates at high temperatures and may lead to the degradation of sensitive materials. Similarly, dry heat sterilization also requires elevated temperatures that can adversely affect the integrity of specific packaging materials. Ethylene oxide, while it can be used for sterilizing complex devices, may not be suitable for all types of containers or packaging, such as those made from Tyvek, without additional considerations. Thus, LTGP stands out as the ideal choice for the circumstances described in the question.