This course includes Physical Structure of the Operating Room, Current Approaches in Operating Room Nursing, Patient Safety and Its Importance in the Operating Room (Patient safety culture, Factors that threaten patient safety, Wrong patient, region and procedure), Patient Safety and Its Importance in the Operating Room (Foreign body oblivion, Electrical and chemical factors, Tissue samples), Employee Safety in the Operating Room I (Safe patient removal and transportation, Floating, sliding and falling, Cutting-piercing tool safety and contamination risk, Protective equipment, Exposure to anesthetic gas waste), Employee Safety in the Operating Room II (Noise -Chemicals -Radiation safety -Workplace violence), Environmental Safety in the Operating Room (Fire security -Chemical safety -Radiation safety -Surgical smoke -Latex allergy), Thermoregulation and Its Importance in the Operating Room (Hypothermia - Malignant hyperthermia), Positioning in the Operating Room (Effect of patient positions on systems - Operating room positions and complications), Infection Control in the Operating Room (Providing asepsis - Surgical hand washing), CAI and Safeguard Principles, Surgical tools and sewing materials (Frequently used surgical instruments and sewing materials -Preparations of the instrument table -Preparation of medicines and solutions).