IAHCSMM CRCST Practice Test Question & Answers

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  • 1/495 Questions

    ________are often pathogenic to humans because they grow best at body temperatures.

    • Gram-Stain
    • Spores
    • Bacillus
    • Mesophiles
Please wait...
About This Quiz

Are you studying to be a service technician and think you are well prepared for the exam? Attempt these CRCST practice test questions and answers to check your preparation level. Service technicians ensure that all the materials used in the hospital are properly sterilized. The IAHCSMM CRCST practice test below is designed to help you pass and refresh your memory See morebefore appearing for the Certified Registered Central Service Technician exams.

Central service technicians play a crucial role in healthcare facilities by ensuring that medical instruments and equipment are properly cleaned, sterilized, and maintained to prevent infections and promote patient safety. This CRCST practice test serves as a comprehensive preparatory tool designed to assess and enhance the knowledge and skills required for the CRCST certification exam. Test yourself now and boost your confidence with the IAHCSMM CRCST practice test!

IAHCSMM CRCST Practice Test Question & Answers - Quiz

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  • 2. 

    Used to visualize the entire large intestine.

    • Sigmoidoscope

    • Colonoscope

    Correct Answer
    A. Colonoscope
    Explanation
    A colonoscope is used to visualize the entire large intestine. It is a long, flexible tube with a light and camera at the end that allows doctors to examine the colon and rectum for any abnormalities or signs of disease. The colonoscope can be inserted through the anus and guided through the entire length of the colon, providing a detailed view of the intestinal lining. This procedure, known as a colonoscopy, is commonly used for screening and diagnosing conditions such as colon cancer, polyps, and inflammatory bowel disease.

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  • 3. 

    Herpes Simplex is a ___________ disease.

    • Ziehl-Nielson Stain

    • Viral

    • Fungus

    • Susceptible host

    Correct Answer
    A. Viral
    Explanation
    Herpes Simplex is classified as a viral disease because it is caused by the Herpes Simplex Virus (HSV). HSV is a highly contagious virus with two main types: HSV-1, which typically causes oral herpes (cold sores around the mouth), and HSV-2, which primarily causes genital herpes. Unlike bacterial or fungal infections, viral infections like Herpes Simplex rely on entering and hijacking the host's cells to reproduce. Once inside the body, HSV can remain dormant in nerve cells and reactivate periodically, often triggered by stress, illness, or other factors, leading to recurrent outbreaks.

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  • 4. 

    Recommended air exchanges for the clean/sterile storage area of CS Dept

    • 4  per hour

    • 5 per hour

    • 6 per hour

    • 10 per hour

    Correct Answer
    A. 4  per hour
    Explanation
    The recommended air exchanges for the clean/sterile storage area of the CS Department is 4. This means that the air in the storage area should be completely exchanged with fresh air four times per hour. This is important to maintain a clean and sterile environment, as it helps to remove any contaminants or particles that may be present in the air. A higher number of air exchanges can help to ensure a higher level of cleanliness and reduce the risk of contamination.

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  • 5. 

    Bacteria that require free oxygen to grow are called BLANK bacteria.

    • Anaerobic

    • Aerobic

    • Viral

    • Vegetative

    Correct Answer
    A. Aerobic
    Explanation
    Bacteria that require free oxygen to grow are called aerobic bacteria. These bacteria rely on oxygen for their metabolic processes and energy production. They use oxygen as a final electron acceptor in their respiration, allowing them to efficiently convert nutrients into usable energy. This adaptation enables aerobic bacteria to thrive in oxygen-rich environments, such as the human body or aerobic wastewater treatment systems.

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  • 6. 

    Leak testing should be performed on each flexible endoscope annually.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Leak testing should be performed on each flexible endoscope regularly, not just annually. Regular leak testing helps to ensure the safety and effectiveness of the endoscope by detecting any leaks or damage that may affect its performance or potentially harm the patient. Annual testing may not be sufficient to catch any issues that may arise throughout the year. Therefore, the statement that leak testing should be performed annually is false.

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  • 7. 

    Microorganisms that are capable of forming a thick wall around themselves to survive in adverse conditions are called:

    • Spores

    • Flagella

    • Bacillus

    • Airborne

    Correct Answer
    A. Spores
    Explanation
    Microorganisms that are capable of forming a thick wall around themselves to survive in adverse conditions are called spores. Spores are a dormant form of microorganisms that can withstand extreme temperatures, lack of nutrients, and other harsh environmental conditions. They have a protective outer layer that allows them to remain viable for extended periods until conditions become favorable for growth and reproduction. Spores are commonly produced by bacteria, fungi, and some protozoa as a survival strategy.

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  • 8. 

    Instruments with tungsten carbide jaws can be safely cleaned in an ultrasonic cleaner.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Tungsten carbide is a brittle material that can be damaged by the cavitation action of an ultrasonic cleaner. The high-frequency sound waves generated by the cleaner create microscopic bubbles that implode, causing tiny shock waves that can chip or crack tungsten carbide instruments. It is recommended to clean these instruments using alternative methods, such as manual cleaning or enzymatic detergents.

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  • 9. 

    An organism, typically a biting insect or tick, that transmits a disease or parasite from one animal or plant to another

    • Droplet

    • Common Vehicle

    • Fomite

    • Vector

    Correct Answer
    A. Vector
    Explanation
    A vector is an organism, such as a biting insect or tick, that can transmit diseases or parasites from one animal or plant to another. This means that it acts as a carrier for the disease or parasite, allowing it to be spread to different hosts. Vectors are important in the transmission of many diseases, such as malaria, dengue fever, and Lyme disease. They play a crucial role in the spread and persistence of these diseases in populations.

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  • 10. 

    Endoscope channels should be cleaned and then left moist for storage.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Endoscope channels should be cleaned and then left dry for storage. Moisture left in the channels can promote the growth of bacteria and other microorganisms, increasing the risk of infection during subsequent use. Therefore, it is important to ensure that the channels are thoroughly dried after cleaning before storing the endoscope.

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  • 11. 

    Powered surgical instruments have one of three power sources; electricity, air, or battery.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Powered surgical instruments can indeed have one of three power sources: electricity, air, or battery. These power sources provide the necessary energy to operate the instruments effectively during surgical procedures. Electricity-powered instruments are commonly used in operating rooms, while air-powered instruments, also known as pneumatic instruments, use compressed air to generate the required power. Battery-powered instruments offer the advantage of portability and can be used in situations where access to electricity or compressed air is limited. Therefore, the statement "Powered surgical instruments have one of three power sources; electricity, air, or battery" is true.

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  • 12. 

    The desired flow of materials in a CS Dept; from soiled to clean to sterile.

    • Two-Way Workflow

    • Backwards

    • One-Way Workflow

    • Sideways

    Correct Answer
    A. One-Way Workflow
    Explanation
    The correct answer is "One-Way Workflow". This means that the desired flow of materials in a CS Dept goes from soiled to clean to sterile in a linear, sequential manner. It suggests that there is a specific direction and order in which materials should move, without any backtracking or sidetracking. This ensures efficiency and prevents cross-contamination or errors in the sterilization process.

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  • 13. 

    Tetanus and botulism do not require free oxygen to grow, so they are classified as ___________ bacteria

    • Aerobic

    • Vegetative

    • Anaerobic

    • Cytoplasm

    Correct Answer
    A. Anaerobic
    Explanation
    Tetanus and botulism are caused by bacteria that can grow and thrive in the absence of free oxygen. These bacteria are classified as anaerobic because they do not require oxygen for their growth and survival.

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  • 14. 

    Modern powered surgical instruments are immersible.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Modern powered surgical instruments are not immersible. Immersible instruments are those that can be submerged in liquid for cleaning and sterilization purposes. However, powered surgical instruments contain electrical components and motors, which can be damaged if submerged in liquid. Therefore, they are typically designed to be cleaned and sterilized using other methods such as wiping or using chemical solutions.

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  • 15. 

    _________ is the first step in the sterilization process.

    • Autoclaving

    • Disinfection

    • Decontamination

    • Inspection

    Correct Answer
    A. Decontamination
    Explanation
    Decontamination is the initial step in sterilization, involving the removal of contaminants from surfaces and instruments to minimize microbial presence. This preparatory phase ensures that subsequent sterilization methods, such as autoclaving or disinfection, can effectively eliminate any remaining microorganisms, ensuring the thorough sterilization of equipment and surfaces.

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  • 16. 

    Using Gram-Stain classifications, Staphylococcus, Enterococcus, and Streptococcus are examples of Gram-BLANK bacteria.

    • Negative

    • Positive

    Correct Answer
    A. Positive
    Explanation
    Staphylococcus, Enterococcus, and Streptococcus are examples of Gram-Positive bacteria because they retain the violet crystal stain used in the Gram-Stain classification. Gram-Positive bacteria have a thick peptidoglycan layer in their cell wall, which traps the violet stain and gives them a purple color under the microscope. Gram-Negative bacteria, on the other hand, have a thinner peptidoglycan layer and an outer membrane that can be easily decolorized, causing them to take up the counterstain and appear pink.

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  • 17. 

    Laparoscopic instrument insulation failure can cause burns.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Laparoscopic instrument insulation failure can cause burns because during laparoscopic procedures, instruments with electrical components are used. If the insulation on these instruments fails, it can lead to the direct contact of the electrical current with the patient's tissues, resulting in burns. This can be a serious complication during laparoscopic surgery and highlights the importance of ensuring proper insulation of instruments to prevent harm to the patient.

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  • 18. 

    Central Service Technicians must wear special attire referred to as ____ to minimize their exposure to blood-borne pathogens and other contaminants.

    • PPE

    • OSHA

    • SCRUBS

    • CDC

    Correct Answer
    A. PPE
    Explanation
    Central Service Technicians must wear special attire referred to as PPE (Personal Protective Equipment) to minimize their exposure to blood-borne pathogens and other contaminants. PPE includes gloves, gowns, masks, and other protective clothing that create a barrier between the technician and potentially infectious materials. Wearing PPE is essential in preventing the transmission of diseases and ensuring the safety of both the technician and the patients.

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  • 19. 

    The bacterial reproductive process that takes place when a mother cell divides into two daughter cells is called:

    • Reproduction

    • Binary Fission

    • Binary Fusion

    • Division

    Correct Answer
    A. Binary Fission
    Explanation
    Binary fission is the correct answer because it is the bacterial reproductive process in which a mother cell divides into two daughter cells. During binary fission, the DNA of the mother cell is replicated and then the cell divides into two genetically identical daughter cells. This process is common in bacteria and is essential for their growth and multiplication.

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  • 20. 

    The purpose of a decontamination battery is to protect PSIs from fluid invasion.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The purpose of a decontamination battery is not specifically to protect Pressure Sensitive Indicators (PSIs) from fluid invasion. A decontamination battery is typically used in military or hazardous environments to provide power to equipment used in decontamination processes. PSIs, on the other hand, are devices that detect changes in pressure. Protecting PSIs from fluid invasion would involve different methods, such as sealing or using protective casings.

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  • 21. 

    The healthcare dept. responsible for researching, ordering, receiving, and managing inventory (conumable supplies).

    • Bio-med

    • OR

    • Material Management Dept.

    • Nursery

    Correct Answer
    A. Material Management Dept.
    Explanation
    The correct answer is Material Management Dept. because this department is typically responsible for researching, ordering, receiving, and managing inventory of consumable supplies in healthcare settings. Bio-med department is more focused on the maintenance and repair of medical equipment, while the nursery department is specifically related to the care of newborns. Therefore, Material Management Dept. is the most appropriate choice for the given responsibilities.

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  • 22. 

    BLANK is defined as the state of being soiled or infected by contact with infectious organisms or other material.

    • Decontaminate

    • Viral

    • Contamination

    • Airborne

    Correct Answer
    A. Contamination
    Explanation
    Contamination is the correct answer because it refers to the state of being soiled or infected by contact with infectious organisms or other material. It implies that something has been contaminated with harmful substances or pathogens, which can pose a risk to health and safety.

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  • 23. 

    Dental Drills are used to remove cement.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Dental drills are not used to remove cement. Instead, dental drills are primarily used for removing decayed or damaged parts of the tooth, preparing the tooth for fillings or crowns, and shaping or polishing the tooth surface. Cement removal is typically done using other dental instruments or techniques, such as chisels or ultrasonic scalers. Therefore, the correct answer is False.

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  • 24. 

    What type of a pressure is required for decontamination areas?

    • Negative

    • Neutral

    • Forced air

    • Positive

    Correct Answer
    A. Negative
    Explanation
    Negative pressure is required for decontamination areas to prevent the spread of contaminants. This means that the air pressure inside the area is lower than the surrounding areas, causing air to flow into the decontamination area rather than out of it. This helps to contain any hazardous substances or contaminants within the decontamination area and minimize the risk of contamination spreading to other areas.

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  • 25. 

    Most bacteria are approximately BLANK microns in size.

    • 1 to 2

    • 2 to 3

    • 1 to 3

    • 1

    Correct Answer
    A. 1 to 2
    Explanation
    Most bacteria are approximately 1 to 2 microns in size. This range is commonly observed in bacterial species and is supported by scientific research and observations. Bacteria come in various shapes and sizes, but the majority fall within this size range. The size of bacteria is an important characteristic as it affects their ability to move, interact with their environment, and cause infections.

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  • 26. 

    Automatic endoscope reprocessors are not recommended for flexible endoscopes.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Automatic endoscope reprocessors are recommended for flexible endoscopes. These reprocessors are designed to automate the cleaning, disinfection, and sterilization processes for endoscopes, including flexible ones. They provide a standardized and consistent approach to ensure proper cleaning and disinfection, reducing the risk of infection transmission. By using automatic reprocessors, healthcare facilities can improve efficiency, save time, and enhance patient safety. Therefore, the statement that automatic endoscope reprocessors are not recommended for flexible endoscopes is false.

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  • 27. 

    Consistent delivery of products and services according to established standards; it "integrates" the concerns for the customers with those of the department and facility

    • Validation

    • Sterility Assurance Level (SAL)

    • Quality

    • ISO 9000

    Correct Answer
    A. Quality
    Explanation
    Quality refers to the consistent delivery of products and services according to established standards. It involves integrating the concerns for the customers with those of the department and facility. This means that quality ensures that the products and services meet the expectations and requirements of the customers while also considering the internal processes and systems within the organization. It involves implementing processes and procedures to ensure that the products and services are of high quality and meet the desired standards.

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  • 28. 

    The use of analytical skills to solve problems and make decisions is a component of which of the following knowledge and skills dimensions?

    • Communication abilities

    • Facility system responsabilities

    • Employability skills

    • Safety practices

    Correct Answer
    A. Employability skills
    Explanation
    The use of analytical skills to solve problems and make decisions is a component of employability skills. Employability skills refer to a set of skills, knowledge, and attitudes that enable individuals to be successful in the workplace. Analytical skills are highly valued by employers as they demonstrate the ability to think critically, analyze information, and make informed decisions. By utilizing analytical skills, individuals can effectively solve problems and contribute to the success of an organization.

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  • 29. 

    Sunlight is lethal to the BLANK stage of pathogens.

    • Growth

    • Viral

    • Reproduction

    • Vegetative

    Correct Answer
    A. Vegetative
    Explanation
    Sunlight is lethal to the vegetative stage of pathogens. Pathogens have different stages in their life cycle, including the vegetative stage, which is characterized by active growth and reproduction. Sunlight can have a detrimental effect on the vegetative stage of pathogens due to its ability to damage the DNA and cell structures of these microorganisms. This can lead to the inhibition or destruction of their growth and reproduction, making sunlight an effective natural disinfectant against pathogens in certain environments.

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  • 30. 

    The first step to inspect the insulation of a laparoscopic instrument is to:

    • Check the collar at the distal tip

    • Try to slide the insulation back

    • Check the handle for chipping or cracking

    • Visually check the instrument's shaft

    Correct Answer
    A. Check the collar at the distal tip
    Explanation
    To inspect the insulation of a laparoscopic instrument, the first step is to check the collar at the distal tip. This is because the collar is the part of the instrument that connects the shaft and the tip, and it is where the insulation is most likely to be damaged or worn out. By checking the collar, one can identify any signs of damage or wear in the insulation, which is crucial for ensuring the safety and effectiveness of the instrument during laparoscopic procedures.

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  • 31. 

    Probability of a viable microorganism being present on a product unit after sterilization

    • Validation

    • Sterility Assurance Level (SAL)

    • Quality

    • ISO 9000

    Correct Answer
    A. Sterility Assurance Level (SAL)
    Explanation
    The Sterility Assurance Level (SAL) refers to the probability of a viable microorganism being present on a product unit after sterilization. It is a measure of the effectiveness of the sterilization process in eliminating microorganisms. A lower SAL indicates a higher level of sterility assurance, meaning that there is a lower probability of viable microorganisms remaining on the product after sterilization. Therefore, the SAL is directly related to the probability of a viable microorganism being present on a product unit after sterilization.

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  • 32. 

    Nosocomial infections are:

    • Most likely to accur during international travel

    • Caused by drug resistant organisms

    • Those without known cures

    • Those which occur in the course of being treated in the hospital

    Correct Answer
    A. Those which occur in the course of being treated in the hospital
    Explanation
    Nosocomial infections are infections that occur in the course of being treated in the hospital. These infections are acquired during a hospital stay and are not present or incubating at the time of admission. They can be caused by a variety of organisms, including drug-resistant ones. Nosocomial infections are not necessarily related to international travel and may have known cures or treatments available.

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  • 33. 

    Healthy people do not harbor or transmit bacteria.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is false. Healthy people can indeed harbor and transmit bacteria. Bacteria can be present in various parts of the body, such as the skin, mouth, and intestines, without causing any harm or symptoms. However, they can still be transmitted through contact with bodily fluids, surfaces, or contaminated objects. Additionally, some bacteria are considered commensal, meaning they live in harmony with the host and provide benefits, while others may be pathogenic and cause infections. Therefore, it is incorrect to say that healthy people do not harbor or transmit bacteria.

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  • 34. 

    Which of the following steps happens first when processing flexible endoscopes?

    • Leak-testing

    • High-level disinfecting/sterilizing

    • Manual cleaning

    • Drying

    Correct Answer
    A. Leak-testing
    Explanation
    The first step in processing flexible endoscopes is leak-testing. This step ensures that the endoscope is free from any leaks that could allow fluid to enter and damage the internal components. Leak-testing is performed before manual cleaning and high-level disinfecting/sterilizing to maintain the integrity of the endoscope and ensure its safe and effective use.

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  • 35. 

    The human resources tool that identifies major tasks performed by persons in specific positions is called a:

    • Job duty list

    • Job specification

    • Task summary review

    • Job description

    Correct Answer
    A. Job description
    Explanation
    A job description is a human resources tool that identifies the major tasks performed by individuals in specific positions. It provides a detailed overview of the responsibilities, duties, qualifications, and requirements of a particular job. This document helps in attracting suitable candidates, setting performance expectations, and evaluating employee performance. It serves as a valuable resource for both managers and employees by providing clarity about job roles and responsibilities.

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  • 36. 

    Anaerobic bacteria require free oxygen to live.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Anaerobic bacteria do not require free oxygen to live. In fact, they are unable to survive in the presence of oxygen. These bacteria obtain their energy through processes that do not require oxygen, such as fermentation or anaerobic respiration. They are able to survive and thrive in environments where oxygen is absent or in low concentrations, such as deep-sea sediments, the human gut, or in certain types of infections. Therefore, the statement that anaerobic bacteria require free oxygen to live is false.

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  • 37. 

    Which of the following should be used to thoroughly rinse (remove) all traces of disinfectant from an endoscope's channels?

    • Forced air

    • Water containing approved sterilant

    • Filtered water

    • A heated glutaraldehyde

    Correct Answer
    A. Filtered water
    Explanation
    Filtered water should be used to thoroughly rinse all traces of disinfectant from an endoscope's channels. This is because filtered water has been processed to remove impurities and contaminants, ensuring a clean and safe rinse. Using forced air, water containing approved sterilant, or a heated glutaraldehyde would not be as effective in removing all traces of disinfectant from the endoscope's channels.

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  • 38. 

    A succession of progressively more responsible professional positions that serves as the foundation of a professional development plan.

    • Overcome

    • Career Ladder

    • Standing up

    • Succession Career

    Correct Answer
    A. Career Ladder
    Explanation
    A career ladder refers to a series of increasingly responsible positions that an individual can move up in their professional journey. It serves as the foundation for a professional development plan as it allows individuals to gradually progress in their careers, gaining more skills, experience, and responsibility along the way. This concept emphasizes the importance of continuous growth and advancement in one's professional life.

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  • 39. 

    Viruses are larger than bacteria.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is incorrect. Viruses are actually smaller than bacteria. While bacteria are single-celled organisms that can be seen under a microscope, viruses are much smaller and can only be seen using an electron microscope. Viruses are composed of genetic material (DNA or RNA) surrounded by a protein coat, while bacteria are complete cells with their own genetic material, cell membrane, and other structures.

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  • 40. 

    The purpose of using a decontamination battery or cord when cleaning powered surgical powered surgical instruments is:

    • To keep fluid from entering the unit

    • To keep functioning batteries and cords clean

    • To prevent electrial shock

    • To test the unit while cleaning

    Correct Answer
    A. To keep fluid from entering the unit
    Explanation
    The decontamination battery or cord serves as a protective barrier, preventing fluids from entering the powered surgical instrument during the cleaning process. This helps maintain the integrity of the instrument and ensures its safe and effective operation.

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  • 41. 

    Procedures used by equipment manufacturers to obtain, record, and interpret test results required to establish that a process consistently produces a sterile product

    • Validation

    • Sterility Assurance Level (SAL)

    • Quality

    • ISO 9000

    Correct Answer
    A. Validation
    Explanation
    Validation is the correct answer because it refers to the procedures used by equipment manufacturers to obtain, record, and interpret test results required to establish that a process consistently produces a sterile product. Validation is an essential step in ensuring the quality and safety of products, as it verifies that the manufacturing process is capable of consistently producing sterile products. It involves conducting tests and collecting data to demonstrate that the equipment and processes meet predetermined specifications and requirements.

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  • 42. 

    Which of the following is the most popular title for the central service department head?

    • Coordinator

    • Director

    • Manager

    • Supervisor

    Correct Answer
    A. Director
    Explanation
    The most popular title for the central service department head is "director." This title is commonly used to designate the individual who oversees and manages the central service department. Directors are typically responsible for setting the department's goals and objectives, making strategic decisions, and ensuring the smooth operation of the department. They often have a higher level of authority and responsibility compared to coordinators, managers, and supervisors.

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  • 43. 

    The spore is the functional center of a cell.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is incorrect. The spore is not the functional center of a cell. Spores are reproductive structures that are produced by some organisms, such as fungi and bacteria, as a means of reproduction and survival in unfavorable conditions. They are dormant structures that can remain inactive for long periods of time until conditions become favorable for growth and development. The functional center of a cell is typically the nucleus, which contains the genetic material and controls the cell's activities.

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  • 44. 

    Endoscopes are often processed in a mechanical unit called:

    • An ultrasonic cleaner

    • A washer-decontaminator

    • A flush-pulse endoscope reprocessor

    • An automatic endoscope reprocessor

    Correct Answer
    A. An automatic endoscope reprocessor
    Explanation
    An automatic endoscope reprocessor is a mechanical unit used for processing endoscopes. It is designed to clean, disinfect, and dry the endoscopes automatically, ensuring thorough and efficient processing. This unit helps to minimize the risk of contamination and infection by providing a standardized and controlled cleaning process. It is an essential tool in healthcare settings where endoscopes are used frequently, as it helps to maintain the safety and effectiveness of the equipment.

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  • 45. 

    "-oscopy" is :

    • Inflammation of a joint

    • Skin disease

    • Visual examination of an organ or joint.

    • Fluid-filled sack

    Correct Answer
    A. Visual examination of an organ or joint.
    Explanation
    The suffix "-oscopy" is commonly used in medical terminology to refer to visual examination procedures. In this case, "-oscopy" indicates the visual examination of an organ or joint. It is important to note that the other options, such as inflammation of a joint, skin disease, and fluid-filled sack, do not accurately describe the meaning of the suffix "-oscopy" in medical terminology.

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  • 46. 

    Staphylococcus is classified as a gram-positive bacteria.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Staphylococcus is classified as a gram-positive bacteria because it retains the crystal violet stain during the Gram staining procedure. This indicates that its cell wall is composed of a thick layer of peptidoglycan, which is a characteristic feature of gram-positive bacteria. Gram-positive bacteria also lack an outer membrane, making them more susceptible to certain antibiotics.

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  • 47. 

    The endoscope that would be dispensed for a procedure that required visualization of the lower part of the large intestine would be a:

    • Colonoscope

    • Sigmoidoscope

    • Gastroscope

    • Ureteroscope

    Correct Answer
    A. Sigmoidoscope
    Explanation
    The sigmoidoscope would be the correct endoscope to use for a procedure that requires visualization of the lower part of the large intestine. The sigmoidoscope is specifically designed to examine the sigmoid colon, which is the S-shaped portion of the large intestine located just above the rectum. It allows for direct visualization of this area and can help diagnose conditions such as colorectal cancer, diverticulosis, and inflammatory bowel disease. The other options, such as the colonoscope, gastroscope, and ureteroscope, are used for different parts of the gastrointestinal or urinary tract and would not be appropriate for visualizing the lower part of the large intestine.

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  • 48. 

    All microorganisms are harmful to humans.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "All microorganisms are harmful to humans" is not true. While some microorganisms can cause diseases and harm humans, not all microorganisms are harmful. In fact, many microorganisms are beneficial to humans, such as those found in the human gut that aid in digestion. Additionally, microorganisms are used in various industries such as food production, medicine, and biotechnology. Therefore, the correct answer is False.

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  • 49. 

    Loaner instruments should:

    • Be decontaminated if they appear soiled upon arrival

    • Be sterilized using a low temperature process

    • Be decontaminated before use

    • Not be used

    Correct Answer
    A. Be decontaminated before use
    Explanation
    Loaner instruments should be decontaminated before use to ensure the safety and hygiene of the patients. This is important because loaner instruments may have been previously used by other patients and could potentially carry infectious agents or contaminants. By decontaminating the instruments before use, any potential risks of cross-contamination or infection can be minimized, providing a safer environment for both the healthcare provider and the patient. Sterilization using a low temperature process may not be sufficient to eliminate all contaminants, so decontamination is necessary as a preliminary step.

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  • Apr 08, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 25, 2016
    Quiz Created by
    Bob

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