Performs scrub activities based on principles of aseptic technique, infection control, universal precautions guidelines, environmental control, and life safety guidelines: anticipates needs of patient and surgeon; demonstrates critical thinking skills and prioritize activities when performing the scrub role; under supervision of the RN, demonstrates ability to prepare medications for procedures to be used by physicians; knows of routine drugs used intra-operatively, dosages, and/or concentration and appropriate route of administration. Performs scrub role, without assistance by locating supplies, equipment, and instruments; prepares operating room utilizing preference cards to set up surgical instruments and equipment; independently prepares the sterile field for adolescent, adult, and geriatric patients for the intra-operative experience; differentiates and demonstrates knowledge of sterilization methods required for instruments or equipment.