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Sterilization
CST
| Question | Answer |
|---|---|
| The method not recommended for sterilizing an endoscope is | Steam |
| The complete destruction of all living organisms is known as | Sterilization |
| Which of the following methods of sterilization is the most inexpensive, economical, and safest | Steam |
| Instruments should be placed in perforated trays for sterilization to allow | Steam to penetrate |
| Wrapped instruments sets must be sterilized for ___ minutes at 250'F for steam sterilization | 30 |
| Which of the following would be considered a biological monitor | Vial with B stearothermophilus |
| If an item wrapped in an imprevious wrapper drops to the floor, what action should be taken | Use the item if not wet |
| Positive assurance of sterility can be accomplished only with the use of | Biologic indicator |
| When wrapping an item with either woven or nonwoven wrap, how many wrappers should be used | Two |
| What is the standard safety margin of a sterile package wrapper that has been opened | One inch |
| In a gravity displacement sterilizer, steam enters the chamber through the | Top back |
| Ethylene oxide is mixed with carbon dioxide to | Reduce flammability of EtO |
| A chemical indicator on a pacakage confirms | Exposure to sterilizing conditions |
| When sterilizing basin sets | A woven towel is used to separate the basins |
| A fomite that contains microorganisms is said to be | Contaminated |
| The ultrasonic washer cleans instruments by | Cavitation |
| Items that are mechanically cleaned and chemically disinfected, but not sterile are said to be | Surgically clean |
| Which chemical solution kills spores and is used to terminally sterilize endoscopes | Glutaraldehyde |
| As part of O.R. decontamination after a procedure, the suction canister containing blood and body fluids should be | Placed in biohazard bag |
| The combination of what two factors kills microbes during steam sterilization | Heat and moisture |
| Which of the following substances is used to create gas plasma for sterilization purposes | Hydrogen peroxide |
| Which of the following levels of disinfection kills all microorganisms, including spores, if the contact time with the item(s) is sufficient | High-level |
| Which of the following solutions is most often used for spot cleaning of blood and body fluid spills on the O.R. floor | Chlorine compounds |
| How long should the steam biological indicator be incubated before the reading is recorded | 24 hours |
| How long should the EtO biological indicator be incubated before the reading is recorded | 48 hours |
| What test is used to check for air entrapment in the prevacuum sterilizer | Bowie-Dick test |
| What term refers to how a sterile item is handled and does not use an expiraton date | Event-related sterility |
| Where should the biological test pack be palced on the steam sterilizing cart | Bottom front |
| How should instruments with lumens be prepared for steam sterilization | Residual amount of distilled water left in lumen |
| For EtO sterilized items, how long must they remain in an aerator being operated at 140'F | 8 hours |
| The temperature in a prevacuum sterilizer must reach a minimum of ___ 'F at a pressure of ___ psi | 270;27 |
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