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DEA 201
QUiZ 2 Sterilization
| Question | Answer |
|---|---|
| Define Disinfection | destruction of most pathogens (not spores) |
| Define Sterilization | destruction or removal of ALL forms of life. |
| #1 requirement for sterilization | The destruction of Bacterial and Fungal Spores |
| Sterilization Methods | Prolonged dry heat, Unsaturated chemical vapor, Steam under Pressure, Ethylene Oxide, Chemical sterilants |
| Prolonged Heat Time and TEMP | 340 degrees, initial heat time is 20 minutes and sterilization (glass is 1 hour (glass and metal instruments) |
| Advantages/ disadvantages of prolonged heat, | Advantage: no dulling, no corrosion/rust, easy Disadvantage: Long time, Can cause discoloration/ warping, Melts Plastic,Without good organization poor penetration of instruments |
| unsaturated Chemical Vapor | Uses a combination of heat, water, pressurized chemicals |
| Chemicals used for chemical vapor | Alcohols, Formaldehyde, Ketone, Acetone, Water (must be purchased VIA manufacturer) sanitized in a chamber |
| Unsaturated Chemical Vapor | 270 degrees, 20 to 30 minutes (high/slow handpieces, contra angles) |
| Advantages/ Disadvantages Chemical Vapor | Advantages: short cycle time, no corrosion, reliable, won't dull cutting edges Disadvantages: oder (Ventilation) expensive solution, dry instuaments before sterilization |
| Steam Under pressure (autoclave/ FLASH STERILIZER) Time and temp | 250 - 270 degrees, 15 to 20 minutes (3-10 statium) Pressure 15 - 20 LBS |
| Steam under pressure facts | efficient & effective MOST COMMON STERILIZATION METHOOD (cotton, rubber, metal tools) |
| Steam Under pressure Advantages / disadvantages | Advantages: short cycle time, sterilized hand pieces, Cheap (run off distilled water) Disadvantages: rust/ corrosion, Dull edges, must oil hand pieces before sterilizing, mets plastic, |
| Ethylene Oxide Time and Temp | Chemical sterilant (uncommon 2 types Heater 120 degrees2 - 3 hours) and room temp at 12 hours |
| Ethylene Oxide Advantages / disadvantages | Advantages Cheep, reliable, most materials can be sterilized (not metal or glass closed containers) Disadvantage: long processing time, toxicity of gas (ventilation) 24 hours for residue to dissipate |
| Monitoring of Sterilization (3 methods) | Process Indicators, Biological Monitoring, Control Indictors |
| process Indicators | heat sensitive Tape, USE IN CONJUNCTION with biological monitors because its only tells you the temp reached a certain point, not that its actually sanitized |
| Biological monitoring | Most accurate 9sent away weekly to a lab DETERMINES IF SPORES HAVE SURVIVED |
| Control indicators | In the package, same idea as tape |
Created by:
ashblake4
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