Which sterilization process requires items to be completely dry before sterilization?

The sterilization process that requires items to be completely dry before sterilization is associated with all the mentioned processes: Ethylene Oxide, Low-Temperature Hydrogen Peroxide (LTHP), and Low-Temperature Gas Plasma (LTGP).

For Ethylene Oxide sterilization, moisture can lead to the formation of ethylene glycol, a byproduct that can interfere with the sterilization process and may pose a risk of residue on the instruments. Therefore, ensuring that items are thoroughly dry ensures effective penetration of the gas and optimal sterilization.

Low-Temperature Hydrogen Peroxide and Low-Temperature Gas Plasma methods also necessitate dry conditions because moisture can impair the effectiveness of the hydrogen peroxide vapor or plasma. If the items are wet, the sterilization process may not adequately eliminate microbial life, leading to insufficient sterilization.

Thus, recognizing the importance of complete drying in all these methods is crucial for achieving effective sterilization outcomes, affirming that the correct answer encompasses all of these processes.