PRINCIPLES OF ASEPTIC TECHNIQUE

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• Only sterile items are used within sterile field.
• Sterile objects become unsterile when touched by unsterile objects.
• Sterile items that are out of vision or below the waist level of the nurse are considered unsterile.
• Sterile objects can become unsterile by prolong exposure to airborne microorganisms.
• Fluids flow in the direction of gravity.
• Moisture that passes through a sterile object draws microorganism from unsterile surfaces above or below to the surface by capillary reaction.
• The edges of a sterile field are considered unsterile.
• The skin cannot be sterilized and is unsterile.
• Conscientiousness, alertness and honesty are essential qualities in maintaining surgical asepsis

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