1.
All objects used in a sterile field must be sterile.
2.
Sterile objects become unsterile when touched by unsterile objects.
3.
Sterile objects that are out of sight or below the waist or table level are considered unsterile.
4.
Sterile objects can become unsterile by prolonged exposure to airborne microorganisms.
5.
Fluids flow in the direction of gravity.
6.
Moisture that passes through a sterile objects draws microorganisms from unsterile surfaces above or below to the sterile surface by capillary action.
7.
The edges of a sterile field are considered unsterile.
8.
The skin cannot be sterilized and is unsterile.
9.
Conscientiousness, alertness, and honesty are essential qualities in maintaining surgical asepsis.