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47 Cards in this Set
- Front
- Back
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BUMEDINST 6600.10A
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Dental infection Control program
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What is the major infectious occupational health hazard in all the health care professions
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HEP B
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Whose standard is to protect health care workers against all infectious diseases?
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OSHA
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How many healthcare workers become infected with HBV annually?
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18000
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Hw many healthcare workers are hospitalized from HBV annualy? How many die?
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600
200 |
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What is occupational exposure?
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pers w/reasonable risk tof skin, eye, mucous membrane, or parenteral contact with blood or other infectious material when protective attire is not used.
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Direct exposure:
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occurs directly through contact w/pt's blood and salive
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Indirect exposure:
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Contact with contaminated instruments, equipment, laundry, trash, and infectious waste
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The process of preventing the access of micro-organisms
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asepsis
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The use of rubber, plastic, paper, foil or other fluid resistant materials to cover surfaces and protcet them from contamination
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barrier technique
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The number of micro-organisms contaminating an object.
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Bioburden (aka bioload or microbial load)
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bacterial endospore test designed to assess whether sterilization has occurred.
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biological monitor(aka bio indicator or bio spore test)
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a diagnostic test of a prevacuum sterizilzer's ability to remove air from the chamber and prevent air reentrant. Not a steriliry assurance test.
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bowie-dick test
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the destruction or inhibition of most viruses and bacteria while in their active growth phase. Process does not necessarily kill all spores nor can it be verified by a monitor
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Chemical disinfection
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The presence or reasonably expected presence of blood or other portentially infectious material on an item or surface
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Contaminated
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The propagation and growth of micro-organisms or living tissue cells in or on a nutrient medium
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Culture
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Critical item classification
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Instruments and materials that penetrate the skin, mucous membranes, or bone. Must be sterile before use.
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Semicritical item Classification
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Instruments, equipment, or materials that frequently contact mucous mombrane but cannot be sterilized due to their design or inability to withstand heat. At a minimum, these require high-level disinfection.
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Non-critical item classification
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Instruments, equipment, or materials that do not normally penetrate or contact mucous mombranes but which are exposed to splatter, spray, or splashing of blood, or are touched by contaminated hands. Require intermediate-level disinfection
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Saturated Steam Sterilization
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Process which uses steam heat under pressure for sufficient length of time to kill all forms of micro-organisms
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Sterilizer (Gravity Displacement Type)
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incoming steam displaces the residual air through a port or drain usually in or near the bttom of the sterilizer chamber.
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Time and temps for Sterilizer (gravity displacement type)
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30 min/ 250-254F and 15-17PSI
15min/ 270-274F and 30-32PSI |
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HBV/HIV testing after exposure follow-up testing
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6 weeks, 12 weeks, 6 months
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at the begining of each workday, flush each unit water line and hoses for at least?
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1 minute. Begin with cup filler and cuspidor even if their us is not anticipated.
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After each pt, remove handpiece, lubricate and run for?
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30 Seconds. THis removes any potentially infectious material from the retraction of coolant water during previous treatment.
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When using non-autoclavable handpieces, how do you disinfect?
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Flush tubing for 1 min at beginning of each day and 30 seconds in between pts to purge tubing contaminants. Lubricate sterilized or disinfected handpieces and run for 15 seconds directing spray into HVE.
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Dental procedures usually generat aerosol particles that average?
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1.3 microns in diameter. Anything less than 5 microns in diameter can penetrate terminal bronchioles and alveoli. where a mask
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Pt's should brush their teeth or rinse w/a mouthwash prior to treatment reducing the microbial concentration of their oral flora by _______ with ______ ________second rinses.
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97%
3 10-second |
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Infectious waste is also termed what?
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regulated waste
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38. What type of sterilizer relies on one or more pressure and vacuum excursions at the beginning or end of the cycle?
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Prevaccum type
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What is the operating temperature of the Prevacuum type sterilizer?
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132-135
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At a minimum, all personnel will receive initial training within how ma ny days of reporting aboard?
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W/in 90days, then annually
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Commands must document infection control training sessions and maintain these records for how long
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3 years
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Repeated use of a single pair of gloves is not permitted, washing increases the porosity of gloves by what?
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60%
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58. What preoperative rinse significantly decreases the infectivity of an aerosol?
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.12% hclorhexidene gluconate rinse.
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60. Do not use what as a surface disinfectant because of its caustic vapors?
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2% glutaraldehyde
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61. When securing for the day, flush the High Volume evacuator system with how much water?
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1 qt
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cleanse the HVE with system cleaner at least how often?
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once a week
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of the day, flush each water line and hose for how long?
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30 seconds
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water soluble complexes of iodine with organic compounds which are ineffective against all gram positive and gram negative bacteria and viruses?
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Iodophors
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effective antiseptic for reducing transient and resident microbial hand flora, and also approved as a surgical scrub
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Chlorhexidine gluconate
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Wash cycle laundry must be of at least how long, what temp water?
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25 minutes
160F |
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Dry heat steriliation
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320-345F for 90 minutes
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Chemical Vapor Steriliation
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Mixture of alcohols, formaldehyde, water, and other chemicals heated under pressure fors a gas that sterilizes.
270F for 20 min |
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Ethylene Oxide Sterilization
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120F for 2-3 hours (serious OSHA problem)
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Liquid Chemical sterilization
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Do not use inbetween pts;
treat prdocuts as high-level disinfectants |
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How are burs and diamonds sterilized?
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clean in an ultrasonic cleaner, dry before sterilizing. Dry heat is preferred. Place burs and diamonds in a screw cap glass test tube or aluminum foil wrapped bur block and dry heat sterilize for 90 min at 320 - 345F. Place chem indicator in each tube.
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