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30
| Question | Answer |
|---|---|
| Which of the following techniques in dentistry has been proved to cause adverse health effects on patients? | No adverse health effects have been reported with backflow from saliva ejectors, clogged suction lines, or back suction. |
| Which of the following statements is true about dental unit waterlines? | Viruses cannot multiply in the DUWL. |
| Factors contributing to the formation of bacteria in DUWLs include all of the following except | well water. |
| The bacteria in the biofilm are more resistant to chemical germicides than planktonic bacteria by a factor of: | 1500. |
| The advantages of self-contained water reservoirs include: | dental personnel can select the quality of water used. maintenance of the water system is under the control of the dental staff. |
| Reduction of exposure to the dental unit water for the dental team includes all of the following except: | a dental dam. |
| Advantages of using self-contained water reservoirs include: | giving the dental office control over quality of water used. |
| Disposable inline microfiltration cartridges should be replaced | according to the manufacturer’s recommendations. |
| Flushing the dental waterlines for several minutes at the beginning of the treatment day and for 20 to 30 seconds between patients will help to: | reduce the microbial count. |
| Waterborne diseases have been found in: | hospitals. schools. dental water lines. |
| Backflow from low-volume saliva ejectors can occur when a patient: | closes his or her lips around the tip of a saliva ejector. |
| While using for routine dental procedures, biofilm and bacteria found in water from municipal lines can enter the oral cavity of a patient through: | the handpiece. the waterline. |
| To reduce the microbial count temporarily and to help clean the handpiece waterlines, DUWLs should be flushed: | for 20 to 30 seconds between patients. every morning for several minutes. |
| Methods of reducing the level of bacterial contamination in waterlines include all of the following except: | yearly replacement of all water lines. |
| Within 5 days of installation, research has shown that microbial counts in new dental unit waterlines can reach _____ CFUs/mL. | 200,000 |
| Biofilm can contain many types of bacteria, including _____ protozoa. | fungi, algae, and |
| The options available for testing the quality of waterline cleaning include: | using a commercial testing service. using an in-office test kit. |
| When choosing a chemical agent to give dental unit water lines a “shock” treatment, care should be taken to: | use a product that will not damage the dental units. check with the manufacturer to determine the recommended chemical product and protocol for maintenance |
| The type of water used during surgery where bone is exposed should be: | The type of water used during surgery where bone is exposed should be: |
| Planktonic bacteria are: | free floating in the water. |
| The section of an MSDS that describes how the product will look and smell as well as other physical characteristics is: | Section III—Physical hazard data. |
| When a chemical is transferred to a different container, the new container must be labeled with: | any label, providing the labeling system is easy to use and all employees are properly trained to understand and read the label. |
| The protocol recommended by manufacturers of eyewash units to reduce microbial content in the waterline is a _____-minute flushing _____. | 3; weekly |
| All waste containers that hold potentially infectious materials must: | be labeled with the biohazard symbol |
| According to OSHA, how often do eyewash stations need to be inspected to ensure proper function | Monthly |
| Eyewash units: | must be installed in every workplace where chemicals are used, according to OSHA regulations. |
| Which of the following is the classification for waste that is infectious and requires special handling, neutralization, and disposal? | Regulated waste |
| A victim who immediately feels the effects of a chemical spill, with symptoms of dizziness, headache, nausea, and vomiting, is experiencing: | acute chemical toxicity. |
| Lead foil from the radiographic film should b | recycled as scrap metal. recycled through Eastman Kodak. |
| Toxicity resulting from high levels of exposure over a short period is defined as: | acute chemical toxicity |
Created by:
christy.woolsey