cst Domain 5: Equipment Sterilization and Maintenance Welcome to your cst Domain 5: Equipment Sterilization and Maintenance 1. CST: Equipment Sterilization and Maintenance Which of the following is NOT a correct method for loading a gravity displacement sterilizer? A. Placing textile packs on their edges B. Stacking instrument trays flat on top of one another C. Placing heavy items on the bottom shelf D. Ensuring there is space between items for steam circulation None 2. CST: Equipment Sterilization and Maintenance Which sterilization method uses hydrogen peroxide vapor and low-temperature gas plasma to sterilize sensitive medical equipment? A. Ethylene oxide sterilization B. Steam sterilization C. Dry heat sterilization D. Plasma sterilization None 3. CST: Equipment Sterilization and Maintenance What is the primary reason for performing a Bowie-Dick test in an autoclave? A. To measure the concentration of the sterilizing agent B. To detect air leaks and inadequate air removal C. To test the autoclave's maximum temperature capacity D. To verify the sterilization cycle time None 4. CST: Equipment Sterilization and Maintenance Which of the following is NOT a factor that can affect the efficacy of sterilization processes? A. The type of microorganisms present B. The color of the sterilization packaging C. The presence of bio-burden on the items to be sterilized D. The density of the load being sterilized None 5. CST: Equipment Sterilization and Maintenance Which chemical indicator class provides the highest level of assurance that sterilization conditions have been met? A. Class 1: Process Indicators B. Class 2: Specific Use Indicators C. Class 5: Integrating Indicators D. Class 6: Emulating Indicators None 6. CST: Equipment Sterilization and Maintenance During sterilization, what is the main reason for wrapping instruments? A. To prevent instruments from getting too hot B. To keep instruments clean until they are used C. To allow steam penetration and maintain sterility until use D. To prevent chemical indicators from fading None 7. CST: Equipment Sterilization and Maintenance What is the purpose of a biological indicator (BI) in the sterilization process? A. To clean the sterilizer chamber B. To indicate the presence of air leaks in the sterilizer C. To directly measure the temperature inside the sterilizer D. To verify the sterilization process by using living microorganisms None 8. CST: Equipment Sterilization and Maintenance Which factor is most critical when considering the load configuration in a steam sterilizer? A. The type of items being sterilized B. The color of the wrapping material C. The orientation of hinged instruments D. The brand of the sterilizer being used None 9. CST: Equipment Sterilization and Maintenance What is the significance of a spore test failing after a sterilization cycle? A. The sterilizer needs to be immediately replaced B. The wrapping technique was incorrect C. It indicates potential sterilization failure, requiring investigation D. It confirms the cycle parameters were set correctly None 10. CST: Equipment Sterilization and Maintenance For sterilizing long lumened instruments, what is an essential consideration to ensure sterilant penetration? A. Using a lower temperature B. Pre-cleaning with enzymatic cleaners C. The diameter of the lumen D. The length of the sterilization cycle None 11. CST: Equipment Sterilization and Maintenance In the context of high-level disinfection 'HLD', which of the following is NOT a suitable method for endoscope reprocessing? A. Glutaraldehyde immersion B. Ortho-phthalaldehyde 'OPA' immersion C. Steam sterilization D. Peracetic acid immersion None 12. CST: Equipment Sterilization and Maintenance When preparing instruments for ethylene oxide (EtO) sterilization, what is the significance of using breathable packaging? A. To allow cooling of the instruments post-sterilization B. To enable the EtO gas to penetrate and exit the packaging C. To prevent moisture buildup inside the package D. To identify the instruments easily after sterilization None 13. CST: Equipment Sterilization and Maintenance Which sterilization monitoring method directly measures the physical conditions within the sterilizer to ensure the delivery of the sterilization agent? A. Chemical indicators B. Biological indicators C. Mechanical monitoring D. Spore testing None 14. CST: Equipment Sterilization and Maintenance For sterilization wraps, what is the primary consideration in selecting the appropriate wrap thickness? A. The color of the wrap B. The size of the instrument tray C. The type of sterilization method used D. The weight of the instrument tray None 15. CST: Equipment Sterilization and Maintenance What is the main reason for failure in the sterilization process when using an immediate-use steam sterilizer? A. Using distilled water in the sterilizer B. Inadequate drying time C. Incorrect loading of the sterilizer D. Insufficient exposure time None 16. CST: Equipment Sterilization and Maintenance What is the impact of residual moisture on instruments after steam sterilization? A. Enhances the sterilization process B. Has no impact on the sterility of the instruments C. Can lead to corrosion and microbial proliferation D. Improves the instruments' durability None 17. CST: Equipment Sterilization and Maintenance In the sterilization of surgical instruments, what is the purpose of a "flash cycle"? A. To quickly cool down instruments after sterilization B. To rapidly sterilize instruments not enclosed in packaging for immediate use C. To test the sterilizer's efficacy with a short burst of steam D. To flash dry instruments before packaging None 18. CST: Equipment Sterilization and Maintenance Which of the following is NOT a factor that can affect the efficacy of sterilization processes? A. The type of microorganisms present B. The color of the sterilization packaging C. The presence of bio-burden on the items to be sterilized D. The density of the load being sterilized None 19. CST: Equipment Sterilization and Maintenance For sterilization wraps, what is the primary consideration in selecting the appropriate wrap thickness? A. The color of the wrap B. The size of the instrument tray C. The type of sterilization method used D. The weight of the instrument tray None 20. CST: Equipment Sterilization and Maintenance During sterilization, what is the main reason for wrapping instruments? A. To prevent instruments from getting too hot B. To keep instruments clean until they are used C. To allow steam penetration and maintain sterility until use D. To prevent chemical indicators from fading None 1 out of 20 Time is Up! Time's up
