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CDC 4Y051 TEST 1 QUESTIONS WITH COMPLETE SOLUTIONS.
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Who appoints the Special Consultant for Infection Control? -- Answer โโ USAF Assistant Surgeon General for Dental Services Who develops and publishes guidelines for USAF Dental Infection Control Program? -- Answer โโ Special Consultant for Infection Control The Occupational Safety and Health Administration (OSHA) Bloodborne Pathogens Standard is -- Answer โโ a Federal rule that sets forth specific requirements to prevent the transmission of bloodborne diseases to employees. When must the exposure - control plan be reviewed and updated, and who should have access to the plan? -- Answer โโ At least annually; all employees and OSHA The minimum requirements of the training program on controlling occupational exposure to bloodborne pathogens in dentistry are determined by -- Answer โโ the dental infection control officer Following the post-exposure evaluation, how many days does the employer have to provide the employee with a copy of the health care professional's written opinion -- Answer โโ 15 How many years does OSHA require medical records maintained on employees with occupational exposure and from date of employment? -- Answer โโ 30; last date Training and medical records must be made available to -- Answer โโ Assistant Secretary of Labor, Occupational Safety and Health Administration Droplets of saliva-borne microorganisms and debris that are usually large enough to be visible are known as -- Answer โโ spatter
Having the patient use an antiseptic mouthwash before treatment can reduced the bacterial count by what percent? -- Answer โโ 98 Microbial levels in the dental unit water supply may be reduced by flushing the water/air lines for -- Answer โโ 20 - 30 seconds b/w patients OSHA requires that a Hep B vaccination be made available to every employee whose job classification or tasks result in occupational exposure within how many days of initial assignment? -- Answer โโ 10 working days The hep B vaccination series must be administered according to the current guidelines -- Answer โโ of the US Public Health Service The application of standards of infection control based on the assumption that all patients are potential carriers of infectious diseases best describes -- Answer โโ standard precaution What type of controls applied to the DTR isolate or removes the bloodborne pathogens hazard from healthcare workers? -- Answer โโ Engineering What types of controls the likelihood of exposure by altering the manner in which the task is performed? -- Answer โโ Work practice Gloves are required to be worn -- Answer โโ when hand contact with blood, saliva, mucous membranes or surfaces contaminated with body fluids or secretions is reasonably anticipated Who must wear protective eyewear when spatter or aerosols are likely to be created? -
What level of disinfectant is used on semi critical surfaces that are not covered with a protective barrier -- Answer โโ Intermediate Other than detergents, the disinfectants included in the low level group are quaternary ammonium compounds -- Answer โโ and simple phenolics Which of the following is not a property of an ideal disinfectant? -- Answer โโ A residual effect on treated surfaces that is activated when surfaces are dry When chemicals coagulate and combine with proteins and produce barriers or films about the microorganisms that inhibit penetration of the disinfectant into the bacterial cells is the best description of which effectiveness factor? -- Answer โโ Organic matter Which of the following takes into account a dilution factor caused by added water from wet instruments, effects of soap and other detergents, and evaporation -- Answer โโ Reuse life Which of the following are currently listed by the EPA and ADA council on Dental Therapeutics as acceptable intermediate hospital-surface disinfectants? -- Answer โโ Iodophors, synthetic phenolics, and chlorine-containing compounds Which fluid is recommended to dilute iodophors prior to use? -- Answer โโ Distilled or softened water When properly diluted with water which chemical agents act in a synergistic manner to create a broad antimicrobial spectrum including tuberculocidal activity? -- Answer โโ Synthetic phenolics Which chemical agents are not considered effective in the presence of tissue proteins? -
What methods of heat sterilizatons are currently accepted in USAF dental clinics? -- Answer โโ Steam under pressure, gravity displacement, prevacuum, dry heat, convection and salt How do you sterilize items which cannot withstand heat? -- Answer โโ ethylene oxide The crucial components of the steam under pressure process are? -- Answer โโ steam temperature and exposure time To properly load the chamber of the gravity displacement unit -- Answer โโ place all packages on edge, with large packs at the bottom of chamber and small packages in an upper layer What sterilization process is accomplished after the washer-sterilizer cycle? -- Answer โโ Terminal sterilization What is the temperature and time required for sterilization in a dry heat oven? -- Answer โโ 320 degrees Fahrenheit for 2 hours and 340 for 1 hour Sterilization using the rapid heat transfer method requires what temperature and time exposure? -- Answer โโ 375 degree Fahrenheit for 12 minutes When exposed to minimal heat and pressure conditions of sterilization what changes colors and indicates whether or not the packs have been processed? -- Answer โโ Chemical indicators How often must biological spore monitoring be performed if implantable devices are in the load? -- Answer โโ Weekly The ultrasonic cleaner is located in which area? -- Answer โโ Sterilization When can ultrasonic instrument decontamination be performed in the dtr? -- Answer โโ never
One type of image receptor for digital radiography is -- Answer โโ an image plate What is placed on the image scanner for processing? -- Answer โโ Image plate Which of the following is an advantage of digital radiography? -- Answer โโ Adjustments to the contrast or density can be accomplished A digital system key element is the -- Answer โโ x ray machine Which of the following is a very important step before using a digital system for the first time? -- Answer โโ refer to manufacture instructions What allows the dentist to view areas of the teeth? -- Answer โโ Digital image Which of the following requires a processor unit to scan the digital image into the computer? -- Answer โโ PSP plate How many types of radiation are there? -- Answer โโ 3 Which xray characteristic relates to the degree of darkness on image? -- Answer โโ Density Which xray characteristic refers to the image's darkness and lightness? -- Answer โโ Contrast Which xray characteristic is dense and does not permit the passage of radiation? -- Answer โโ Radiopaque How many planes of reference are used for proper patient positioning? -- Answer โโ 2 Which plane of reference should be parallel to the floor with the mouth slightly open for all maxillary and mandibular exposure? -- Answer โโ Second plane In digital radiography what captures an image and transmit it to a computer -- Answer โโ Sensors
What is the name of the electronic processor used to produce an image from the PSP plates? -- Answer โโ Scan-X Which is not a step in exposing and downloading an image using a digital sensor? -- Answer โโ Double click on patient's name When mounting digital images, what should be placed toward the incisal edge and occlusal surface so that the images do not appear backwards? c Letter "a" How should the teeth appear on the mount? -- Answer โโ Same order as in the mouth