CIS Domain 6: Sterilization and high level disinfection Welcome to your CIS Domain 6: Sterilization and high level disinfection 1. CIS: Sterilization and high level disinfection When considering the use of a gravity displacement sterilizer, which of the following factors MOST critically affects the sterilization efficacy? A. The color of the packaging material. B. The distribution of the load within the chamber. C. The brand of the sterilizer. D. The age of the sterilizer. None 2. CIS: Sterilization and high level disinfection In the context of high-level disinfection, which of the following best describes the importance of contact time? A. The time needed for the disinfectant to dry on the surface. B. The minimum time the surface must remain wet with the disinfectant to ensure efficacy. C. The time required for preparing the disinfectant solution. D. The duration for which the disinfectant remains potent after mixing. None 3. CIS: Sterilization and high level disinfection Which of the following best describes the principle of aeration in Ethylene Oxide (EtO) sterilization? A. Cooling the sterilized items before storage. B. Removing residual EtO gas from sterilized items. C. Increasing the humidity inside the sterilizer chamber. D. Circulating EtO gas to ensure uniform distribution. None 4. CIS: Sterilization and high level disinfection In low-temperature gas plasma sterilization, which of the following materials is MOST likely to be incompatible? A. Stainless steel instruments. B. Polyethylene plastics. C. Cellulose-based materials. D. Anodized aluminum. None 5. CIS: Sterilization and high level disinfection Which of the following is the MOST critical factor to monitor during the steam sterilization process to ensure efficacy? A. The color change of chemical indicators. B. The time and temperature of the cycle. C. The noise level of the sterilizer. D. The age of the steam sterilizer. None 6. CIS: Sterilization and high level disinfection When considering the sterilization of heat-sensitive instruments, which sterilization method is LEAST appropriate? A. Ethylene Oxide (EtO) sterilization. B. Low-temperature gas plasma sterilization. C. Steam sterilization under standard conditions. D. Dry heat sterilization. None 7. CIS: Sterilization and high level disinfection In the sterilization process, what is the significance of the "kill time"? A. The time it takes for the sterilizer to reach the desired temperature. B. The duration for which items must be stored after sterilization before use. C. The time required to kill 100% of the specified microorganisms at a set temperature. D. The cooling time needed before handling sterilized items. None 8. CIS: Sterilization and high level disinfection Which factor is MOST critical in determining the effectiveness of a high-level disinfectant? A. The pH level of the disinfectant solution. B. The presence of organic matter in the solution. C. The brand of the disinfectant. D. The color of the disinfectant solution. None 9. CIS: Sterilization and high level disinfection What is the primary purpose of using a chemical indicator in sterilization processes? A. To replace biological indicators for cost-saving purposes. B. To visually confirm that the item has been exposed to the sterilization process. C. To clean the instruments before sterilization. D. To serve as the sole evidence of sterilization efficacy. None 10. CIS: Sterilization and high level disinfection What is the MOST critical consideration when selecting a packaging material for items to be sterilized using steam sterilization? A. The color of the packaging material. B. The ability of the packaging material to allow steam penetration. C. The brand of the packaging material. D. The cost of the packaging material. None 11. CIS: Sterilization and high level disinfection During Ethylene Oxide (EtO) sterilization, which parameter is LEAST likely to impact the efficacy of the sterilization process? A. Humidity level within the chamber. B. Concentration of EtO gas. C. Color of the items being sterilized. D. Temperature within the chamber. None 12. CIS: Sterilization and high level disinfection In the sterilization of instruments, what is the primary function of a Bowie-Dick test? A. To detect the presence of microbial life on instruments. B. To confirm the removal of air and penetration of steam in pre-vacuum steam sterilizers. C. To measure the concentration of sterilizing agent in chemical sterilizers. D. To verify the temperature accuracy of dry heat sterilizers. None 13. CIS: Sterilization and high level disinfection Which of the following best describes the term "sporicidal" in the context of sterilization and disinfection? A. Capable of inactivating viruses only. B. Capable of removing all forms of microbial life, including spores. C. Specific to the destruction of bacteria, excluding spores. D. Effective against fungi but not bacterial spores. None 14. CIS: Sterilization and high level disinfection For high-level disinfection, which of the following factors is MOST likely to compromise the efficacy of the process? A. Use of a disinfectant with a pleasant odor. B. Insufficient contact time with the disinfectant. C. Use of a color-safe disinfectant. D. Application of disinfectant at room temperature. None 15. CIS: Sterilization and high level disinfection In the context of sterilization, what is the significance of a "dry load" condition? A. A condition where sterilization occurs without the use of liquid chemicals. B. A prerequisite for the effective use of dry heat sterilization methods. C. The undesirable presence of moisture in a sterilized pack prior to storage. D. The optimal condition for the sterilization of moisture-sensitive instruments. None 16. CIS: Sterilization and high level disinfection When utilizing a peracetic acid sterilization system, what is the primary limitation? A. Its corrosiveness to metals. B. The long exposure times required. C. Its incompatibility with plastic materials. D. The requirement for high temperatures. None 17. CIS: Sterilization and high level disinfection What is the role of a biological indicator in steam sterilization validation? A. To colorimetrically indicate the presence of steam. B. To mechanically measure the temperature and pressure inside the chamber. C. To biologically confirm the sterilization by demonstrating the inactivation of highly resistant microorganisms. D. To chemically react with steam to change color. None 18. CIS: Sterilization and high level disinfection In regards to instrument sterilization, what is the significance of the term "flash sterilization"? A. A method of sterilization used for instruments that cannot withstand heat. B. The rapid sterilization of instruments not intended for immediate use. C. A sterilization process for emergency use, where instruments are needed immediately. D. A low-temperature sterilization method for delicate instruments. None 19. CIS: Sterilization and high level disinfection When considering the reprocessing of endoscopes, which of the following is a critical step for preventing post-procedural infections? A. Manual pre-cleaning with enzymatic cleaners. B. Drying with compressed air. C. Immersion in a high-level disinfectant. D. Visual inspection under magnification. None 20. CIS: Sterilization and high level disinfection In the use of hydrogen peroxide vapor for low-temperature sterilization, what is the primary safety concern? A. The potential for explosive reactions with organic materials. B. The corrosive effect on certain metals and alloys. C. The risk of respiratory irritation upon exposure. D. The degradation of plastic materials over repeated cycles. None 1 out of 20 Time is Up! Time's up
