CSPDT Exam- Low Temperature Sterilization Quiz

Explanation
Under OSHA regulations, the Permissible Exposure Limits (PEL) specify the maximum amount or concentration of a chemical that a worker may be exposed to. PELs are set for various hazardous substances and are intended to protect workers from the adverse health effects associated with prolonged exposure to these chemicals. The PELs are typically expressed as a time-weighted average (TWA) concentration over an 8-hour workday. It is important for employers to monitor and control the exposure levels to ensure the safety and well-being of their workers.

Explanation
Hydrogen peroxide sterilization occurs by a process called oxidation. Oxidation is a chemical reaction in which a substance loses electrons, resulting in a decrease in its overall charge. In the case of hydrogen peroxide sterilization, the hydrogen peroxide molecule breaks down into water and oxygen, releasing oxygen free radicals. These free radicals are highly reactive and can damage the DNA and proteins of microorganisms, leading to their destruction and sterilization. Therefore, oxidation is the mechanism by which hydrogen peroxide effectively sterilizes surfaces and equipment.

Explanation
The NIOSH parts per million (ppm) limit for Ethylene Oxide (EtO) that is "Immediately Dangerous to Life or Health" is 800ppm. This means that exposure to Ethylene Oxide at or above this concentration can cause severe health effects or even be fatal. It is important to ensure that exposure to Ethylene Oxide is kept below this limit to protect the health and safety of workers.

Explanation
Ozone sterilant is a chemical used for sterilizing and disinfecting purposes. Its chemical formula is O3. Ozone is a highly reactive molecule consisting of three oxygen atoms. It is a powerful oxidizing agent and is commonly used in industries and medical settings for its strong disinfecting properties. Ozone sterilant is effective in killing bacteria, viruses, and other microorganisms, making it a popular choice for sterilization processes.

Explanation
False. Not all forms of low-temperature sterilization require aeration at the completion of the cycle. Some methods, such as hydrogen peroxide gas plasma sterilization, do not require aeration. Aeration is the process of removing any residual sterilant gas from the sterilized items before they can be used. However, in some low-temperature sterilization methods, aeration is necessary to ensure that any remaining sterilant gas is safely removed.

Explanation
Ethylene oxide is a form of low-temperature sterilization that requires aeration at the completion of the cycle. This is because ethylene oxide is a toxic gas that needs to be removed from the sterilized items before they can be used safely. Aeration involves exposing the sterilized items to fresh air or circulating air to remove any remaining traces of the gas. This process ensures that the sterilized items are free from any harmful residue and are safe for use.

Explanation
Gas Plasma is a distinct state of matter that is different from solid, liquid, or gas. It is formed when a gas is heated to a very high temperature or exposed to a strong electromagnetic field, causing its atoms to ionize and become highly charged. In the case of Hydrogen Peroxide Gas Plasma, it refers to the state of hydrogen peroxide when it is in a highly charged and ionized form. Therefore, the correct answer is Gas Plasma.

Explanation
Radio frequency energy can indeed ionize the hydrogen peroxide molecules, causing them to break apart and form a "gas plasma" state. This process is commonly used in plasma sterilization systems, where the gas plasma is generated to effectively kill microorganisms on medical equipment and other surfaces.

Explanation
Paper/plastic peel pouches are not compatible with hydrogen peroxide sterilizers. Hydrogen peroxide sterilizers require materials that are able to withstand the high temperatures and pressures involved in the sterilization process, which paper/plastic peel pouches are not designed for. Therefore, the statement is false.

Explanation
Bacillus atrophaeus is used to test Ethylene Oxide sterilizers.