B. Sterility is event related. Microorganisms must be kept to irreducible minimum. A. Perfect asepsis is an idea. All microorganisms cannot be eliminated. Skin cannot be sterilized.
Air is contaminated by droplets.
Anesthetic Waste Radiation Leaded aprons and shields available for use during procedures. Laser Safety Protective eyewear for patient and operating team. Sterile water available in the room and on sterile field. Smoke evacuation system is to be employed when applicable. Surgery high filtration masks should be worn during procedures that produce a plume.