20. Clinical contact surfaces contaminated with blood and potentially infectious materials should be disinfected with a: a. High level disinfectant. b. Detergent. c. Intermediate-level disinfectant. d. Low-level disinfectant. 21. The following water should be used for routine dental procedures: a. Sterile saline. b. Sterile water. c. Less than 500 CFU/mL of colony-forming bacteria. d. More than 500 CFU/ml of colony-forming bacteria. 22. CDC recommendations for disinfection of digital radiography sensors includes: a. No barrier protection is needed. Soak sensor in high-level disinfectant. b. No barrier protection is needed. Autoclave the sensor after use. c. Barrier protection of sensor with household plastic wrap. No disinfection recommended. d. Barrier protection of sensor with FDA-cleared plastic sensor sleeve. Disinfect sensor with intermediate-level disinfectant. 23. Single-use items enhance infection control because they: a. Require extra steps during the cleaning process. b. Can be cleaned with environmental surface disinfectants. c. Eliminate potential for cross contamination. d. Can be effectively heat sterilized and reused. 24. Pre-procedural mouth rinses containing an antimicrobial agent: a. Prevent clinical infections. b. Eliminate the need to disinfect environmental and housekeeping surfaces. c. Reduce the level of microorganisms in aerosols and spatter. d. Recommended by the CDC. 25. Regulated medical waste should: a. Follow federal, state, and local regulations. b. Follow CDC and FDA regulations. c. Include blood-stained gauze from a routine prophy. d. Include the majority of waste generated in a dental facility.
13. An example of an engineering control for sharps safety is: a. Special container for contaminated sharp instruments. b. Written policy and procedures for exposure prevention. c. Single-handed recapping of needles. d. Retracting soft tissues with a mouth mirror. 14. According to the Spaulding classification system, items that contact intact skin are classified as: a. Noncritical. b. Semicritical. c. Critical. d. Noninvasive. 15. Which of the following is the safest and most efficient practice for cleaning contaminated instruments? a. Ultrasonic cleaning unit. b. Hand scrubbing with a long-handled brush. c. Hand scrubbing with a scrub brush. d. Instrument washer. 16. Unwrapped sterilization should only be used under which circumstance: a. Unwrapped instruments are immediately placed in drawers and stored unwrapped. b. Implantable devices are routinely processed unwrapped. c. Biological indicator is placed in each unwrapped cycle. d. Items are transported aseptically to point of use and used immediately. 17. Which type of indicator should be placed inside every b. Mechanical indicator. c. Biological Indicator. d. External chemical indicator. 18. The CDC recommends using biological indicators (i.e., spore tests) at least: a. Daily. cassette or instrument package? a. Internal chemical indicator. b. Weekly. c. Monthly. d. Yearly. 19. Disinfectants used in dentistry must be __________ registered disinfectants. a. FDA (Food and Drug Administration). b. EPA (Environmental Protection Agency). c. CDC (Centers for Disease Control and Prevention). d. OSHA (Occupational Safety and Health Administration).
Course Code: DCA02CD
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