CP2-an
Terms
undefined, object
copy deck
- Define sterilization
- Destruction of all living organisms & spores on an object (generally applied to inanimate objects)
- Define Disinfection
- Destruction of all vegetative forms of organism, but NOT spores (typically refers to inanimate object)
- Define antiseptic
- an agent capable of preventing infection by inhibiting growth f infectious agents (generally applied to living tissues)
- Methods of sterilization
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1. Dry Heaet
2. Steam heat - autoclave
3. Cold sterilization
4. Radiation
5. Chemical - Standard Cycle of autoclaving
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121C (250F)
15 ps
Min of 13 minutes (usually 15 minutes as safety factr) - What is flash sterilization
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Use for emergency sterilization:
131C (270F)
3 minutes for unwrapped items
Place in tray & carry tray to sx - Autoclave precautions
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1. Do Not overfill
2. Do not letitems touch one another
3. use a steam indicator - inside & one outside
4. Distribute items evenly in tray
5.Use distilled water
6.DO NOT REMOVE UNTIL DRY
7. Set timer AFTER correct conditions of temp & pressure have been met - Storage Times for Single wrapped muslin items
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Closed cab: 1 week
Open Cab: 2 days - Storage Times for double wrapped muslin items
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Closed cab: 7 weeks
Open Cab: 3 weeks - Storage Times for single-wrapped crepe paper items
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Closed cab: at least 8 wks
Open cab: 3 weeks - When is pack considered unsterile
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1. becomes wet after sterilizing
2. tape is broken or loose
3.Date missing or illegible
4. outer wrapper is punctured or ripped
5. pack drops on teh floor - What do autoclave tape identify
- 1. exposure to steam but NOT time, temp &
- Fsible melting pellet glass type indicator
- Indicates temp, NOT time
- Culture tests indicates
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Proves micro-orgs killed,
1. Not immediate available
2. Does Not assess steam penetration - Chemical sterilization indicators
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1. most common
2. colorchangeswhenadequate steam for adequate time - How does cold sterilization work
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1. simlest but NOT total sterility
2. Clean of free organis material - then immerse
3. Immerse 5-20 min for disinfection
- 10 hours for sterility
4. Rinse instrumentsw/ sterile waater b/c may be caustic to tissue
5. gluteraldhyde & chlorohex most common - What are most cmmonly used cold sterilization fluids
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1. Glutaraldehyde (cidex)
2. Chlorohexadine - When would you use radiation as a method of sterilization
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1. Industrially
2. Large quantities or spaces
3. UV lites disinfect surfaces
4. NO enetrating power - What formof radiation sterilization is used in sx suites
- 1. Mercury vapor produce UV
- Down side to UV light disinfection
- Damage to eyes or skin cancer after prolonged use
- When is ionizing radiation uses
- sterilize pre-packaged materials like tubing, gloves, suture
- What is the agents for chemical sterilization
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1.Ethylene oxide gas used in Specialty practices
2. Plasma hydrogen perioxide -
Advantagesof ehtylene oxide gas
Disadvantages -
1. safe for rubber & glass
1. explosive & carcinogenic
2. CA doesn't allow b/c of environmental concerns -
Advantages of Plasmahydrogen peroxide
Disadvantages: -
1. safer than ethylene oxide gas
1.leaves residue &
2. can be corrosive - Thread count of muslin or linen for sx drapes, etc
- 140 threads/sq. inche - DOUBLE THICKNESS
- What is the ideal wrap or drape
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1. selecive permeability
2. resistant to damage
3. flexible - comforms to pack
4. memory - returns to flat position when unwrapped -
Advantages of non-woven drapes
DISADVANTAGES? -
1. cellulose, nylon, rayon
2. light,medium & heavy wts
3. lint free
4. good microbial barrier
5. non resuab;e
Disadvantages : CAN NOT SEE THRU - Advantage of paper sx wrappong
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1. parchment orcrepe
2.economical & disposable
3. good barier to moisture microbes - Disadvantages to paper wrappings
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1. subject to holes & tears
2. inflexible once sterilized -
Advantages of Plastic wrapping
Disadvantages -
1. polypropylene fil that makes a pouch
2. transparent
3.ends need heat sealer or tape
Disadvantages"difficulttotransfer to a sterile field - What is the difference btwn reflex and vital sign
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reflex gives info on anesthetic depth
Vital signs provide info on homeostatic mechanism - Define Vital sign
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indicate how well the patient is responding o anesthetia:
Heart rate
Respiration
CRT
Temperature - Define reflex
- involuntary response to stimulus (pinprick or tap)-