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Which of the following steps does NOT contribute to creating an aseptic environment in the operating room?

  1. Use of powdered gloves

  2. Use of lint-free drapes

  3. Rinsing of instruments after use with saline

  4. Use of Milipore filters

The correct answer is: Use of powdered gloves

Using powdered gloves does not contribute to creating an aseptic environment in the operating room. Powdered gloves can introduce particles and contaminants into the sterile field, increasing the risk of infection for the patient. Therefore, the use of powdered gloves is not recommended in the operating room to maintain the aseptic environment. On the other hand, options B, C, and D all contribute to creating an aseptic environment. The use of lint-free drapes helps prevent the introduction of contaminants, rinsing instruments after use with saline removes debris and helps maintain cleanliness, and Milipore filters are used to purify solutions and maintain sterility in the operating room.