10 - Pink Flashcards
What are the different types of surgical instrument sterilization
Steam Dry heat Gas sterilization Radiation Chemical
How does steam sterilization work
Most reliable form of sterilization
Steam @ 15 psi x 15-45 mins = destroy all ice
Vacuum autoclaves can sterilize in 3 mins
How does heat sterilization work
120/250 takes 6 hours
170/360 takes 1 hour
For items injured by moisture or poorly penetrated by steam
How does gas sterilization work
Ethylene oxide = 3-6 hours
Used for delicate instruments (scopes)
24 hrs of aeration necessary to let ethylene oxide out because it irritates tissues
How does radiation sterilization work
Used for commercially bought disposable stuff
How does chemical sterilization work
2% glytaraldehyde aq Used for heat sensitive stuff Codex - buffered alkaline solution or glutaraldehyde Sonacide - potentiated acid solution Alcohol - effective in absence of spores
What are some guidelines concerning the prevention of surgical site infection
ETOH = quickest Chlorhexadine = best for residual effect Clippers good, shaving bad Masks do no good Scrubbing - 2 min as good as 10 min
What is the effectiveness of hand disinfection
See email
