Dialysis Technician Practice Exam

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What does the abbreviation ETO represent in medical terms related to sterilization?

Ethanol
Ethylene Oxide
Ethyl Trichloroacetate
Ethylene Terephthalate

The correct answer is: Ethylene Oxide

The abbreviation ETO in medical terms related to sterilization stands for Ethylene Oxide. This substance is widely used as a gas for sterilizing medical equipment and supplies that cannot withstand high temperatures or moisture, making it especially valuable in hospital settings. Ethylene Oxide is effective at penetrating porous materials and disrupting the cellular structure of microorganisms, thereby achieving sterilization. The process involves exposing items to Ethylene Oxide gas for a certain period, followed by aeration to remove any residual gas before the items can be safely used. Its ability to sterilize at lower temperatures allows for the safe treatment of heat-sensitive products, such as electronic devices, plastic tools, and certain textiles, ensuring their usability and safety in medical environments.