C3 Da - Hltinf002 Process Reusable Instruments
Theory Assessment
HLTINF002 Process reusable medical devices and equipment knowledge evidence quiz.
Refer to:Chapter 7 Reading - Essentials of Dental Assisting, 5th Edition, Robinson & BirdChapter 8 Reading - Essentials of Dental Assisting, 5th Edition, Robinson & BirdADA Guidelines of Infection Control, Third Edition, Section D INSTRUMENT PROCESSING, p. 16-27
100% score required. Following assessment, submit a printed 100% completed certificate to your teacher by the agreed due date.
Complete your name, email and Student Declaration below. Good Luck!
Questions and Answers
- 1.
The purpose of surface disinfection includes all of the following, except?
- A.
Because equipment and treatment room surfaces become dark in colour over time
- B.
Because equipment and treatment room surfaces become contaminated with saliva
- C.
Because equipment and treatment room surfaces become contaminated with blood
- D.
Because equipment and treatment room surfaces become contaminated with aerosols containing blood or saliva
Correct Answer
A. Because equipment and treatment room surfaces become dark in colour over timeExplanation
The purpose of surface disinfection includes preventing the contamination of equipment and treatment room surfaces with saliva, blood, and aerosols containing blood or saliva. The statement "because equipment and treatment room surfaces become dark in colour over time" does not align with the purpose of surface disinfection. Discoloration of surfaces may occur due to other factors, but it is not a primary reason for implementing surface disinfection protocols.Rate this question:
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- 2.
An Australian regulatory agency that creates the infection control standards that we must follow is?
- A.
National Health and Medical Research Council (NHMRC)
- B.
Medicines and Healthcare Products Regulatory Agency (MHRA)
- C.
United States – Occupational Health and Safety Association (OSHA)
- D.
WorkSafe Australia
Correct Answer
A. National Health and Medical Research Council (NHMRC)Explanation
The National Health and Medical Research Council (NHMRC) is the correct answer because it is an Australian regulatory agency that is responsible for creating infection control standards that must be followed. The NHMRC plays a crucial role in setting guidelines and regulations to ensure the safety and health of the public in Australia. They conduct research, provide evidence-based recommendations, and develop policies to prevent and control infections in various healthcare settings. By following the infection control standards set by the NHMRC, healthcare professionals and facilities can effectively prevent the spread of infections and maintain a safe environment for patients and staff.Rate this question:
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- 3.
True or false?All contaminated surfaces must be precleaned before disinfection?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
It is true that all contaminated surfaces must be precleaned before disinfection. Precleaning involves removing any visible dirt, debris, or organic matter from the surface, which can interfere with the effectiveness of the disinfectant. By precleaning the surface, it ensures that the disinfectant can come into direct contact with the pathogens and effectively kill them, reducing the risk of infection or transmission.Rate this question:
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- 4.
True or false?You must ware appropriate PPE while cleaning and disinfection environmental surfaces.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
It is important to wear appropriate personal protective equipment (PPE) while cleaning and disinfecting environmental surfaces to protect oneself from potential hazards such as chemicals and pathogens. PPE may include gloves, masks, goggles, or aprons, depending on the specific cleaning and disinfection tasks being performed.Rate this question:
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- 5.
True or false?Disinfection is the same as sterilisation.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Disinfection and sterilization are not the same. Disinfection refers to the process of eliminating most or all pathogenic microorganisms, except for bacterial spores, from inanimate objects or surfaces. Sterilization, on the other hand, involves the complete removal or destruction of all forms of microbial life, including spores. While both processes aim to reduce the risk of infection, sterilization is more thorough and effective in eliminating all microorganisms. Therefore, the correct answer is false.Rate this question:
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- 6.
According to The Guidelines, ‘ONLY those chemical disinfectants that are ___________ with the Therapeutic Goods Association (TGA) may be used.' p.80
- A.
Registered
- B.
Listed
- C.
Scheduled
- D.
Banned
Correct Answer
A. RegisteredExplanation
According to The Guidelines, only chemical disinfectants that are registered with the Therapeutic Goods Association (TGA) may be used. This means that the disinfectants must be officially approved and listed by the TGA in order to be considered safe and effective for use.Rate this question:
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- 7.
You must follow manufacturers recommendation on which disinfectants to use on dental equipment
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Following the manufacturer's recommendation on which disinfectants to use on dental equipment is important because different disinfectants may have different chemical compositions and may react differently with the materials used in dental equipment. Using the wrong disinfectant may damage the equipment or reduce its effectiveness in killing bacteria and viruses. Therefore, it is crucial to adhere to the manufacturer's guidelines to ensure the safety and proper functioning of dental equipment.Rate this question:
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- 8.
Which type of chemical disinfectant is also known as household bleach?
- A.
Sodium hypochlorite
- B.
Idophors
- C.
Alcohol
- D.
Synthetic phenol compounds
Correct Answer
A. Sodium hypochloriteExplanation
Sodium hypochlorite is the correct answer because it is commonly known as household bleach. It is a chemical disinfectant that is widely used for cleaning and disinfecting purposes in households. Sodium hypochlorite is effective in killing a wide range of bacteria, viruses, and fungi, making it a popular choice for disinfection.Rate this question:
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- 9.
Tick the following aseptic techniques used to reduce the spread of microorganisms:
- A.
Avoid unnecessary touching of surfaces
- B.
Use high-volume evacuation
- C.
Use the rubber dam
- D.
Use preprocedure mouth rinses
- E.
Use disposable items
- F.
Reduce dental unit water line contamination
- G.
Use non-sterilised critical instruments on patients
- H.
Do not disinfect environmental surfaces in-between patients
Correct Answer(s)
A. Avoid unnecessary touching of surfaces
B. Use high-volume evacuation
C. Use the rubber dam
D. Use preprocedure mouth rinses
E. Use disposable items
F. Reduce dental unit water line contaminationExplanation
The correct answer includes aseptic techniques that are used to reduce the spread of microorganisms in a dental setting. These techniques include avoiding unnecessary touching of surfaces, using high-volume evacuation, using the rubber dam, using preprocedure mouth rinses, using disposable items, and reducing dental unit water line contamination. These techniques help to prevent the transmission of microorganisms and maintain a sterile environment during dental procedures. Using non-sterilized critical instruments on patients and not disinfecting environmental surfaces in-between patients would increase the risk of spreading microorganisms and are not considered aseptic techniques.Rate this question:
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- 10.
A slime-producing bacterial communities that may also harbor fungi, algae, and protozoa is known as a __________?
- A.
Biofilm
- B.
Bacterial film
- C.
Slimefilm
- D.
Bacterial slime
Correct Answer
A. BiofilmExplanation
A slime-producing bacterial community that may also harbor fungi, algae, and protozoa is known as a biofilm. Biofilms are complex structures that form when microorganisms adhere to surfaces and produce a slimy matrix of extracellular polymeric substances. These biofilms can be found in various environments, such as on rocks, medical devices, and even inside the human body. The presence of multiple microorganisms within biofilms allows for interactions and cooperation between different species, contributing to the overall stability and resilience of the community.Rate this question:
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- 11.
True or false?No cleaning or disinfection is required within the dental laboratory or radiology area.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
False. Cleaning and disinfection are essential within the dental laboratory or radiology area to maintain a safe and hygienic environment. These areas are prone to the accumulation of contaminants and pathogens, so regular cleaning and disinfection protocols should be followed to prevent cross-contamination and ensure the safety of staff and patients.Rate this question:
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- 12.
The "ideal" instrument-processing area should include all of the following, except?
- A.
Share the space with the dental laboratory
- B.
Not be part of a common walkway
- C.
Deep sink with hands-free controls
- D.
Be dedicated only to instrument processing
Correct Answer
A. Share the space with the dental laboratoryExplanation
The "ideal" instrument-processing area should not share the space with the dental laboratory. This is because the dental laboratory may have different requirements and processes that could potentially contaminate the instrument-processing area. It is important to have a separate and dedicated space for instrument processing to maintain proper infection control protocols and prevent cross-contamination.Rate this question:
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- 13.
True or false?The sterilisation area workflow pattern flows from the clean area towards the contamination area.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The sterilisation area workflow pattern does not flow from the clean area towards the contamination area. This statement is false.Rate this question:
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- 14.
Tick the following items found in the contaminated area of a sterilisation processing area.
- A.
Deep sink
- B.
Waste disposal container
- C.
Sharps bin
- D.
Ultrasonic cleaner
- E.
Sterile instrument packets
- F.
Supplies for wrapping instruments
- G.
Autoclave logbook
Correct Answer(s)
A. Deep sink
B. Waste disposal container
C. Sharps bin
D. Ultrasonic cleaner
F. Supplies for wrapping instrumentsExplanation
The correct answer includes items that are commonly found in a sterilization processing area. A deep sink is necessary for cleaning and rinsing instruments. A waste disposal container is needed to properly dispose of any contaminated materials. A sharps bin is used to safely dispose of sharp objects such as needles. An ultrasonic cleaner is used to remove debris from instruments. Supplies for wrapping instruments are necessary for packaging instruments before sterilization. These items are all essential for maintaining a clean and sterile environment in a sterilization processing area.Rate this question:
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- 15.
The monitoring test used to determine whether the ultrasonic cleaner is working properly, is known as the _______________________?
- A.
Foil Test
- B.
Bowie Dick Test
- C.
Chemical Indicator Test
- D.
Biologic Test
Correct Answer
A. Foil TestExplanation
The foil test is used to determine whether the ultrasonic cleaner is working properly. In this test, a piece of aluminum foil is placed in the cleaner and subjected to the cleaning cycle. If the foil comes out clean and without any holes or damage, it indicates that the cleaner is functioning correctly. The foil test is a simple and effective way to ensure that the ultrasonic cleaner is able to remove contaminants and provide thorough cleaning.Rate this question:
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- 16.
A thermal disinfection machine________?
- A.
Uses heat and water, at temperatures that destroy infectious agents
- B.
Sterilise instruments
- C.
Can only be used for metal or glass instruments or equipment
- D.
May be used with any cleaning solution
Correct Answer
A. Uses heat and water, at temperatures that destroy infectious agentsExplanation
A thermal disinfection machine uses heat and water at high temperatures to destroy infectious agents. This process helps to sterilize instruments and equipment, ensuring that they are free from any harmful bacteria or viruses. It is not limited to only metal or glass instruments, as it can be used with any cleaning solution to effectively disinfect a wide range of materials.Rate this question:
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- 17.
It is recommend that instruments are dried before they are wrapped or bagged for the steam steriliser.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Instruments should be dried before they are wrapped or bagged for the steam sterilizer because moisture can interfere with the sterilization process. Steam sterilization relies on high temperatures to kill microorganisms, and if instruments are not properly dried, the presence of moisture can prevent the steam from reaching all areas of the instrument, potentially leaving behind bacteria or other pathogens. Therefore, it is important to ensure that instruments are completely dry before they are wrapped or bagged for the steam sterilizer to ensure effective sterilization.Rate this question:
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- 18.
Steam sterilisers sterilise dental instruments and other items by means of ____________?
- A.
Steam under pressure
- B.
Excessive heat only
- C.
Steam with excessive heat
- D.
Pressure only
Correct Answer
A. Steam under pressureExplanation
Steam sterilisers sterilise dental instruments and other items by means of steam under pressure. This method involves subjecting the items to high temperatures and pressure, which effectively kills bacteria, viruses, and other microorganisms. The combination of steam and pressure ensures thorough sterilisation, making it a reliable and efficient method for ensuring the cleanliness and safety of dental instruments.Rate this question:
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- 19.
The following are recommendation for properly loading a steam steriliser, except?
- A.
Manufacturer’s instructions are all the same
- B.
Do not overload
- C.
Using racks increase circulation of the steam
- D.
If using bags, plastic side up
Correct Answer
A. Manufacturer’s instructions are all the sameExplanation
The correct answer is "Manufacturer’s instructions are all the same." This means that the recommendation for properly loading a steam sterilizer does not include following the manufacturer's instructions, as the instructions can vary depending on the specific sterilizer model and brand. It is important to carefully read and follow the manufacturer's instructions for loading the sterilizer to ensure proper sterilization and safety.Rate this question:
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- 20.
If a package is damaged after the sterilisation process, it may be used?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
If a package is damaged after the sterilisation process, it should not be used. Damaged packaging can compromise the sterility of the contents, allowing contaminants to enter and potentially cause infection or other harm. Therefore, it is important to discard any damaged packages and use only those that are intact and properly sealed to ensure the safety and effectiveness of the sterilisation process.Rate this question:
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- 21.
The monitoring test that involves the use of a heat-sensitive chemical that changes colour when exposed to certain conditions, is known as the _______________________?
- A.
Chemical Indicator Test
- B.
Bowie Dick Test
- C.
Foil Test
- D.
Biologic Test
Correct Answer
A. Chemical Indicator TestExplanation
The correct answer is Chemical Indicator Test. This test involves the use of a heat-sensitive chemical that changes color when exposed to certain conditions. It is commonly used in sterilization processes to ensure that the desired temperature and time parameters have been achieved. The chemical indicator provides a visual indication of whether the sterilization process has been successful or not.Rate this question:
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- 22.
The monitoring test that is the only approved way to confirm if sterilisation has occurred, is known as the _______________________?
- A.
Biologic Test
- B.
Bowie Dick Test
- C.
Foil Test
- D.
Chemical Indicator Test
Correct Answer
A. Biologic TestExplanation
The monitoring test that is the only approved way to confirm if sterilization has occurred is known as the biologic test. This test involves using biological indicators, such as spore strips or ampoules, which contain highly resistant microorganisms. These indicators are placed alongside the items being sterilized and then incubated to check for any surviving microorganisms. If no growth is observed, it confirms that sterilization has been successful. This test is considered the most reliable and accurate method for confirming sterilization.Rate this question:
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- 23.
The monitoring test that measures the effectiveness of the air removal and even penetration of steam in a pre-vacuum steriliser, is known as the _______________________?
- A.
Bowie Dick Test
- B.
Biologic Test
- C.
Foil Test
- D.
Chemical Indicator Test
Correct Answer
A. Bowie Dick TestExplanation
The Bowie Dick Test is a monitoring test that evaluates the efficiency of air removal and steam penetration in a pre-vacuum sterilizer. It is used to ensure that the sterilization process is effective and that all air is removed from the chamber, allowing for proper steam penetration and sterilization of the instruments. This test is commonly performed in healthcare facilities to ensure the safety and effectiveness of the sterilization process.Rate this question:
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- 24.
Biologic monitoring, or spore testing is recommend to be completed at least __________?
- A.
Weekly
- B.
Monthly
- C.
Yearly
- D.
Daily
Correct Answer
A. WeeklyExplanation
Biologic monitoring, also known as spore testing, is a process used to ensure the effectiveness of sterilization techniques in healthcare settings. It involves testing the sterilization equipment by using biological indicators, such as spores, to verify that the sterilization process has successfully killed all microorganisms. The recommended frequency for completing biologic monitoring is weekly. This ensures that the sterilization equipment is consistently functioning properly and that patient safety is maintained on a regular basis.Rate this question:
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- 25.
According to the ADA Guidelines, the Bowie Dick Test is recommend to be completed at least __________?
- A.
Daily
- B.
Monthly
- C.
Yearly
- D.
Weekly
Correct Answer
A. DailyExplanation
According to the ADA Guidelines, the Bowie Dick Test is recommended to be completed daily. This test is used to evaluate the effectiveness of air removal in vacuum-assisted steam sterilizers. By conducting the test daily, healthcare facilities can ensure that their sterilizers are functioning properly and that any potential issues are identified and addressed promptly. This helps maintain a safe and sterile environment for patients and staff.Rate this question:
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- 26.
According to the ADA Guidelines, “If an instrument cannot be cleaned it cannot be safely _______?"
- A.
Reprocesssed
- B.
Disposed of
- C.
Stored away
- D.
Sharpened
Correct Answer
A. ReprocesssedExplanation
According to the ADA Guidelines, if an instrument cannot be cleaned, it cannot be safely reprocessed. This means that if an instrument cannot undergo the necessary cleaning procedures to remove any contaminants or debris, it cannot be properly sterilized or disinfected for safe use again. Therefore, it should not be used and should be disposed of instead.Rate this question:
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- 27.
According to the ADA Guidelines, "When manual cleaning of instruments, ________________ tap water is suitable?"
- A.
Lukewarm
- B.
Hot
- C.
Ice cold
- D.
No water is recommended
Correct Answer
A. LukewarmExplanation
According to the ADA Guidelines, when manually cleaning instruments, lukewarm tap water is suitable. This means that using water that is moderately warm is recommended for cleaning instruments. Water that is too hot or too cold may not effectively clean the instruments or may cause damage. The use of lukewarm water helps to ensure proper cleaning and maintenance of the instruments.Rate this question:
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- 28.
According to the ADA Guidelines, "Items must be free of _______________ soil before being placed in an ultrasonic cleaner?"
- A.
Visible
- B.
Dust
- C.
Invisible
- D.
Water
Correct Answer
A. VisibleExplanation
According to the ADA Guidelines, items must be free of visible soil before being placed in an ultrasonic cleaner. This means that any visible dirt or grime should be removed from the items before they are placed in the cleaner. The ultrasonic cleaner uses high-frequency sound waves to create microscopic bubbles in a cleaning solution, which then implode and remove dirt and contaminants from the items. If there is visible soil on the items, it may not be effectively removed by the cleaner, leading to ineffective cleaning results.Rate this question:
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- 29.
According to the ADA Guidelines, "As residual moisture may impede the sterilisation process, instruments to be sterilised by steam should be dried." Suitable methods include all of the following, except?
- A.
Using a hair dryer
- B.
Using a drying cabinet
- C.
Using a lint-free cloth or wipe
- D.
Using a short rinse in very hot water
Correct Answer
A. Using a hair dryerExplanation
The ADA Guidelines state that instruments to be sterilized by steam should be dried because residual moisture can impede the sterilization process. Suitable methods for drying instruments include using a drying cabinet, using a lint-free cloth or wipe, and using a short rinse in very hot water. However, using a hair dryer is not a suitable method for drying instruments as it may introduce contaminants or cause damage to the instruments.Rate this question:
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- 30.
According to the ADA, what is the sterilistation cycle for hollow objects where the ratio of the length of the hollow portion to its diameter is more than 1:5?
- A.
B class cycles
- B.
N class cycles
- C.
S class cycles
- D.
A class cycles
Correct Answer
A. B class cyclesExplanation
According to the ADA, hollow objects with a ratio of the length of the hollow portion to its diameter greater than 1:5 should undergo B class cycles for sterilization.Rate this question:
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- 31.
According to the ADA Guidelines, "A package is considered to be non-sterile" for all of the following, except?
- A.
It has been placed on a clean surface
- B.
It has been dropped on the floor
- C.
Comes out of the steam steriliser Wet
- D.
Is damaged or Open
Correct Answer
A. It has been placed on a clean surfaceExplanation
According to the ADA Guidelines, a package is considered to be non-sterile if it has been dropped on the floor, comes out of the steam sterilizer wet, or is damaged or open. Placing a package on a clean surface does not make it non-sterile, as long as the surface itself is clean and free from contaminants.Rate this question:
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- 32.
True or false?Packaging wraps are not to be reused
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement "Packaging wraps are not to be reused" is true. Packaging wraps are typically designed for single-use purposes, such as protecting products during transportation and preventing damage. Reusing packaging wraps may compromise their effectiveness in providing adequate protection, as they may become worn out or less secure after the initial use. Additionally, reusing packaging wraps may not be hygienic, especially for products that require a clean and sterile environment. Therefore, it is generally recommended to dispose of packaging wraps after their initial use and use new ones for subsequent packaging needs.Rate this question:
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