![]() Clean gowns are worn to protect the worker. Hands and arms are dried with a sterile towel. Hands and forearms are scrubbed for 10 minutes to reduce the bacterial count on the skin surface. Hands and arms are dried with paper towels. Hands and forearms are washed for 1 to 2 minutes to remove surface contaminants and soil. Only sterile articles are brought into the sterile field. Once a sterile article touches an unsterile article, it is contaminated (unsterile). A zone about the site of operation or wound is established as a sterile field. Nothing goes out of the zone without being disinfected or wrapped in a clean cover to permit handling in a clean zone. Everything within the zone of isolation is contaminated. A zone about the isolation unit is established as contaminated. Patients requiring surgery are taken to the operating room of the hospital. Patients with a communicable disease are separated from the rest of the patients by room, ward, or unit. To prevent introduction of any organism into an open wound on the patient or into a body cavity. To reduce the transmission of pathogenic organisms from patient to another person. Sterility (freedom from all microorganisms). ![]() Cleanliness (freedom from most pathogenic organisms). All of the procedures used to sterilize and to keep sterile any objects or articles that are to be introduced into a wound or body cavity or that is to penetrate the skin. All of the procedures used to protect the patient and his environment from the spread of infectious organisms. Some of the differences between medical aseptic technique and surgical aseptic technique are listed below. Confusion sometimes results from erroneously thinking that medical asepsis and surgical asepsis are the same except one is used on a medical ward and the other is used in a surgical ward. Aseptic technique implies all those procedures that reduce or eliminate pathogens and their actions or minimize their areas of existence. ![]() Asepsis is the condition of being free from disease-producing microorganisms.
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