400
While preparing to do a sterile dressing change, a nurse accidentally sneezes over the sterile field that is on the over-the-bed table. Which of the following principles of surgical asepsis, if any, has the nurse violated?
A. When a sterile field comes in contact with a wet surface, the sterile field is contaminated by capillary action.
B. Fluid flows in the direction of gravity.
C. A sterile field becomes contaminated by prolonged exposure to air.
D. None of the principles were violated.
C. A sterile field becomes contaminated by prolonged exposure to air.