Lecture 4: Prep of surgeon, surgical team and surgical facilities Flashcards
What are the clean surgical facilities
ORs, scrub sink areas, sterile supply rooms
what are the mixed surgical facilities
hallways between OR, and other areas, storage areas, utility rooms
what are the contaminated surgical facilities
anesthesia and prep rooms, dressing/locker rooms, offices
most bacteria in OR is shed from __ and __ by __
skin and hair by personnel
where do you clip and vacuum patients
in contaminated area only- do not clip in OR
what should temp and humidity be for preparation room
temp: 62-68 F, humidity of 50% or less to reduce bacterial growth
what is the single most important environmental factor to prevent SSI
proper air handling
air should flow from __ to __
OR to corridors
shedding of bacteria from hair shown to increase __
SSI
what is function of surgical masks
contain droplets of microorganisms from mouth and nasopharynx
where should you face when sneezing, talking or coughing
sterile field- sides are not secured/sealed to face
when are glove perforations increased risk
- Non-dominant hand
- Non-soft tissue surgeries (ortho)
- Longer than 60 minutes
why is scrubbing with a brush no longer recommended
Results in skin damage, increased bacterial load/shedding, changes in microbial flora
what should you do prior to surgical scrub
wash hands with non-medicated soap and completely dry
what are the most common medicated scrub soaps
- Chlorhexidine gluconate
- Providing iodine
- Hexachlorophene
what are the most common alcohol based surgical scrubs
- Triseptin
- Avagard
- Purell
- Endure 450
What is the MOA of medicated soap: chlorhexidine gluconate
disrupts bacterial cell wall and precipitates cell proteins
chlorhexidine gluconate is __spectrum
broad
what is MOA of medicated soap: iodophors/ povidone iodine
cell wall penetration, oxidation, replaces microbial contents with free iodine
Is providone iodine broad or narrow spectrum
broad
which is inactivated by organic material: chlorhexidine gluconate or povidone iodine
povidone iodine
povidone iodine requires minimum of __minutes of skin contact
2
which may be irritating to skin: chlorhexidine gluconate or povidone iodine
povidone iodine
what is MOA of alcohol based scrubs
protein denaturation, lysis, and metabolic lysis
Are alcohol based scrubs broad or narrow spectrum
broad
why are alcohol scrubs considered superior vs medicated soaps
- Higher antibacterial efficacy
- Rapid reduction in resident skin flora
- Repeat use for 1 week associated with lower # of bacteria
- Cost effective
T or f: front and back side of your gown are sterile
false- only front side
