The Ultimate IAHCSMM Quiz: Questions & Answers

Detergents used in mechanical cleaners should be low foaming because excessive foam can interfere with the cleaning process and cause problems such as reduced cleaning efficiency, overflow, and damage to the equipment. Low foaming detergents ensure that the cleaning solution can effectively penetrate and clean the surfaces without creating excessive foam. This allows the mechanical cleaner to operate efficiently and effectively.

The purpose of using a decontamination battery or cord when cleaning powered surgical instruments is to keep fluid from entering the unit. This is important because fluid can damage the internal components of the instrument, leading to malfunction or electrical shock. By using a decontamination battery or cord, which is designed to prevent fluid from entering the unit, the instrument can be safely cleaned without the risk of damage or electrical hazards.

Thermal disinfection refers to the use of heat to kill all microorganisms, except spores. This process involves subjecting the objects or surfaces to high temperatures for a specified period of time to ensure the destruction of most pathogens. It is a commonly used method in healthcare settings to decontaminate medical equipment and instruments. Sterilization, on the other hand, refers to the complete elimination of all forms of microbial life, including spores. High-level disinfection is a process that eliminates most microorganisms, but not necessarily spores. Mechanical disinfection is not a recognized term in the context of microbial control.

An index card should be used to test Kerrison Laminectomy Ronguers. This is because the ronguers are surgical instruments used for removing bone during a laminectomy procedure. Testing them with an index card allows for checking the sharpness and precision of the instrument's cutting edge. The index card provides a suitable material to assess the instrument's ability to cleanly cut through the card, simulating the bone removal process during surgery.

A gastroscope is a medical instrument that allows for visual inspection of the upper digestive tract. It is used to examine the esophagus, stomach, and the beginning of the small intestine. This procedure is performed by inserting the gastroscope through the mouth and down the throat, providing a clear view of the internal organs. It is commonly used to diagnose various conditions such as ulcers, tumors, and inflammation in the digestive system. The gastroscope's flexible tube and camera system enable doctors to identify abnormalities and guide further treatment if necessary.

Shelf life refers to the length of time a disinfectant can be stored and used effectively before it expires and must be discarded. It indicates the period during which the disinfectant maintains its potency and effectiveness. Once the shelf life is exceeded, the disinfectant may lose its efficacy and become less effective in killing germs and bacteria. Therefore, it is important to adhere to the recommended shelf life to ensure the disinfectant's optimal performance.

Glutaraldehyde and OPA are classified as high-level disinfectants because they have the ability to kill or inactivate a wide range of microorganisms, including bacteria, viruses, fungi, and mycobacteria. High-level disinfectants are typically used for medical instruments and equipment that come into contact with mucous membranes or non-intact skin, as they have a higher level of effectiveness compared to intermediate or low-level disinfectants. Glutaraldehyde and OPA have been proven to be effective in achieving high-level disinfection and are commonly used in healthcare settings.

This statement is false because not all liquid disinfectants are capable of sterilization, even if their exposure time is increased. Sterilization refers to the complete elimination of all forms of microbial life, including bacteria, viruses, and spores. While some liquid disinfectants may be effective in killing or reducing the number of microorganisms, they may not be able to achieve sterilization. Sterilization usually requires more stringent methods, such as heat, pressure, or certain chemical agents specifically designed for this purpose.

A micro drill is used in ear surgery and for driving very small wires through the bone. This tool is specifically designed for delicate procedures that require precision and accuracy. It allows surgeons to create small holes in the bone without causing excessive damage or trauma. The micro drill's small size and high speed make it ideal for intricate procedures where control and finesse are crucial.

Leak testing should be performed on each flexible endoscope more frequently than annually. This is because flexible endoscopes are delicate instruments that are prone to wear and tear, and regular leak testing helps to ensure their proper functioning and prevent potential damage. Performing leak testing annually may not be sufficient to detect any leaks or damages that may have occurred throughout the year. Therefore, the correct answer is False.

Leak-testing is the first step in the processing of flexible endoscopes. This involves checking for any leaks or damage in the endoscope's channels or tubing. By conducting leak-testing first, any issues with the integrity of the endoscope can be identified and addressed before proceeding with further processing steps such as manual cleaning, disinfecting/sterilizing, and drying. This ensures that the endoscope is in proper working condition and ready for the subsequent steps of the processing.

When cleaning aluminum items, it is recommended to use a to and fro motion with the grain. This means moving the cleaning tool back and forth in the direction of the natural grain of the aluminum. This method helps to prevent scratching or damaging the surface of the aluminum. Using a circular motion or a stiff metal brush can cause abrasions or scratches on the aluminum, while using a water spray alone may not effectively remove dirt or grime.

Thermal disinfection refers to the use of heat to eliminate or reduce the number of microorganisms, excluding spores. This process involves subjecting the objects or surfaces to high temperatures for a specified period of time, which effectively kills or inactivates the majority of the microorganisms present. While sterilization aims to completely eliminate all forms of microbial life, thermal disinfection is a less intense method that targets most microorganisms, but not spores. This method is commonly used in healthcare settings to ensure the cleanliness and safety of medical equipment and supplies.

Stainless Steel jaw needleholders do not necessarily last longer than Tungsten Carbide jaw needleholders. The durability and longevity of a needleholder depend on various factors such as the quality of materials used, the manufacturing process, and the maintenance and care taken by the user. While Tungsten Carbide jaw needleholders are known for their excellent durability and resistance to wear, it is not accurate to claim that they always outlast Stainless Steel jaw needleholders. Therefore, the statement that Stainless Steel jaw needleholders last longer than Tungsten Carbide jaw needleholders is false.

After applying instrument identification tape, autoclaving the instruments helps to bind the tape to the instrument. Autoclaving is a process of sterilization that uses high pressure and steam to kill bacteria, viruses, and other microorganisms. The heat and moisture from autoclaving can help the adhesive on the tape to adhere securely to the instrument, ensuring that the identification information remains intact during use and cleaning. Therefore, it is true that instruments should be autoclaved after applying instrument identification tape.

The correct answer is in the clean assembly area prior to set assembly. This is because laparoscopic insulation should be tested before it is assembled into the set to ensure that it is functioning properly and will not cause any issues during surgery. Testing it in the clean assembly area allows for any necessary repairs or replacements to be made before the set is fully assembled and ready for use.

When the ultrasonic cleaner's tank is changed, it is necessary to degas the water because excess bubbles from filling reduce the energy of the cavitation process. Cavitation is the formation and collapse of tiny bubbles in the liquid, which creates intense pressure waves that help in cleaning. If there are too many bubbles in the water, they can interfere with the cavitation process and reduce its effectiveness. Therefore, degassing the water helps to remove these excess bubbles and ensure optimal cleaning performance.

Cebatome is the correct answer because it is a tool used specifically for removing cement. A dermatome, on the other hand, is a surgical instrument used for cutting thin slices of skin for grafting. Therefore, the correct tool for removing cement is the Cebatome.

Dental drills are not used to remove cement. Dental drills are primarily used to remove decayed portions of teeth or to shape and smooth the teeth for procedures like fillings or crowns. To remove cement, other tools or techniques such as chisels, scrapers, or solvents may be used.

They are not designed for cleaning in automatic washer, and they must be manually cleaned and decontaminated.

Bactericidal refers to a substance or treatment that is capable of killing bacteria. It is specifically used to describe agents that can destroy bacteria by targeting and disrupting their cellular structures or metabolic processes. Bactericidal agents are effective in reducing or eliminating bacterial populations, making them an important tool in preventing and treating bacterial infections. This term is used to differentiate from bacteriostatic, which refers to substances that inhibit the growth or reproduction of bacteria without necessarily killing them. Sterilization, on the other hand, refers to the complete elimination or destruction of all forms of microbial life, including bacteria, viruses, and fungi.

Alcohol must remain in wet contact with an item for at least 5 minutes to achieve a reasonable level of disinfection. This is because alcohol needs sufficient time to effectively kill bacteria and viruses on the surface. A shorter contact time may not be enough to completely eliminate harmful microorganisms. Therefore, a 5-minute contact time is recommended to ensure proper disinfection.

A cystoscope is a medical instrument that is used to visualize the urethra and bladder. It is inserted into the urethra and allows doctors to examine the lining of the bladder and urethra for any abnormalities or conditions. This procedure is commonly done to diagnose and monitor conditions such as urinary tract infections, bladder stones, and bladder cancer. The cystoscope has a light and a camera attached to it, which allows for a clear view of the inside of the bladder and urethra. It is a valuable tool in urology and helps doctors make accurate diagnoses and provide appropriate treatment.

A sigmoidoscope is a medical instrument that is specifically designed to allow visual inspection of the lower part of the large intestine, known as the sigmoid colon. It is used to diagnose and monitor conditions such as inflammation, polyps, and tumors in this area. The sigmoidoscope is inserted into the rectum and allows the doctor to view the sigmoid colon through a lighted tube. It is a smaller and more flexible instrument compared to a colonoscope, which is used to examine the entire colon.

An automatic endoscope reprocessor is the correct answer because it is a mechanical unit used for processing endoscopes. This device is designed to automate the cleaning, disinfection, and drying processes of endoscopes, ensuring that they are properly cleaned and ready for reuse. Ultrasonic cleaners, washer-decontaminators, and flush-pulse endoscope reprocessors are also used in the processing of endoscopes, but an automatic endoscope reprocessor is specifically designed for this purpose.

Horziontal work surfaces in decontamination area should be cleaned at the beginning and end of each shift.

Softened water decreases the likelihood of mineral scale deposits. When water is softened, the minerals that cause scale buildup, such as calcium and magnesium, are removed. This process helps prevent the formation of mineral deposits on surfaces like pipes, appliances, and fixtures. Softened water is less likely to leave behind mineral residue, resulting in cleaner and more efficient operation of water-using devices.

The correct answer is to check the collar at the distal tip. This is because the collar is the part of the instrument that covers the insulation. By inspecting the collar, one can ensure that the insulation is intact and not damaged. This is important as damaged insulation can lead to electrical leakage and potential harm to the patient during laparoscopic procedures. Checking the collar is the first step in ensuring the safety and effectiveness of the instrument.

A sigmoidoscope is the correct answer because it is specifically designed for visualizing the lower part of the large intestine, also known as the sigmoid colon. A colonoscope is used for examining the entire colon, while a gastroscope is used for examining the stomach and upper part of the small intestine. A ureteroscope is used for visualizing the ureter, which is not relevant to this question. Therefore, the sigmoidoscope is the most appropriate endoscope for this particular procedure.

Pyrogens are substances that can induce fever in the body. They can be either endogenous (produced by the body itself) or exogenous (introduced from outside sources). When pyrogens enter the body, they stimulate the release of certain chemicals that raise the body's temperature, leading to fever. This response is a part of the body's immune system and helps to fight off infections. Therefore, the correct answer is that pyrogens are fever-producing substances.

Vertical soaking cylinders are used to soak instruments with lumens so all surfaces will be contacted by the cleaning solution.

Cationic compounds are substances that carry a positive electrical charge. These compounds have the ability to exhibit germicidal properties, meaning they can kill or inhibit the growth of microorganisms. This is because the positive charge of cationic compounds allows them to interact with and disrupt the cell membranes of bacteria, viruses, and other pathogens. As a result, cationic compounds are often used in disinfectants, sanitizers, and antiseptics to effectively eliminate harmful microorganisms.

Filtered water should be used to thoroughly rinse all traces of disinfectant from an endoscope's channels. This is because filtered water is free from impurities and contaminants, ensuring a clean and thorough rinse. Using forced air, water containing an approved sterilant, or a heated glutaraldehyde may not effectively remove all traces of disinfectant and could potentially leave residue or harmful substances behind.

A disinfectant is a chemical that is effective in killing most pathogenic organisms, such as bacteria and viruses. However, it is not effective in killing spores, which are a dormant form of certain microorganisms that can resist harsh conditions. This is why a disinfectant is not suitable for sterilization purposes, where the complete elimination of all microorganisms, including spores, is required.

A bronchoscope is a medical instrument used to visualize the tracheobronchial tree. It is a flexible or rigid tube with a light and camera attached to it, allowing doctors to examine the airways and lungs. The bronchoscope can be inserted through the mouth or nose and guided down into the trachea and bronchi. This procedure is commonly used to diagnose and treat various respiratory conditions such as infections, tumors, and blockages. It provides a clear view of the airways, helping doctors to identify any abnormalities or issues that may be present.

Electric etching (engraving) is not an acceptable form of instrument marking. It involves using an electrically charged tool to engrave markings on the instrument's surface. However, this method can cause damage to the instrument and compromise its integrity. Laser-etching, acid-base etching, and heat-fused nylon are all acceptable and commonly used methods for instrument marking that do not pose the same risks as electric etching.

Thermal disinfection is accomplished using heated water because high temperatures can effectively kill or inactivate microorganisms. Heating water to a certain temperature can ensure that it reaches the necessary level of thermal energy to destroy pathogens. This method is commonly used in various settings, such as hospitals and food processing industries, to sanitize equipment, utensils, and surfaces. By using heated water, the heat can penetrate and eliminate bacteria, viruses, and other harmful organisms, providing an effective means of disinfection.

Instruments are not heat treated to give their surface a mirror (shiny) finish. Heat treatment is a process used to alter the physical and sometimes chemical properties of a material, such as its hardness or strength. To achieve a mirror finish, instruments are typically polished or undergo a different surface treatment process, not heat treatment.

Automatic endoscope reprocessors are recommended for flexible endoscopes. These reprocessors are designed to clean and disinfect endoscopes effectively and efficiently, reducing the risk of cross-contamination and infection. They provide standardized and consistent cleaning processes, ensuring that flexible endoscopes are thoroughly cleaned and safe for reuse. Using automatic endoscope reprocessors also saves time and resources compared to manual cleaning methods. Therefore, the statement that automatic endoscope reprocessors are not recommended for flexible endoscopes is false.

To prevent coagulation of proteins, the water temperature should be below 43°C (110°F). Coagulation is the process in which proteins denature and clump together, resulting in a solid or semi-solid substance. Higher temperatures can cause the proteins to denature and coagulate more quickly. Therefore, keeping the water temperature below 43°C (110°F) helps to maintain the integrity of proteins and prevent coagulation.

The statement is false because the part of a hemostat that locks and holds it in position is actually called the ratchet lock, not the box lock. The box lock refers to the joint or hinge mechanism of the hemostat that allows it to open and close. The ratchet lock, on the other hand, is the mechanism that locks the hemostat in a closed position to securely hold objects or tissues.

Mechanical washers and washer-decontaminators are not regulated by the CDC. The CDC is the Centers for Disease Control and Prevention, which is primarily responsible for protecting public health and safety. While the CDC provides guidelines and recommendations for the use of mechanical washers and washer-decontaminators in healthcare settings, they are not directly regulated by the CDC. The regulation of these machines may fall under the jurisdiction of other organizations or regulatory bodies, such as the Food and Drug Administration (FDA) or Occupational Safety and Health Administration (OSHA).

Disinfection refers to the process of eliminating or reducing the number of pathogenic microorganisms on an inanimate surface. While sterilization involves the complete destruction of all microorganisms, disinfection focuses on reducing their numbers to a safe level. Therefore, the given answer, "Disinfection," is correct as it accurately describes the destruction of most pathogenic microorganisms on a surface, without achieving complete sterilization.

Antiseptics are used on living tissue to slow the growth of microorganisms. Unlike disinfectants, which are used on inanimate objects, antiseptics are specifically formulated to be safe for use on skin and other living tissues. Glutaraldehydes and halogens are disinfectants, not antiseptics, and are typically used to kill microorganisms on surfaces and equipment. Therefore, antiseptics are the correct answer in this context.

Laser-finished instruments may have a durable protective finish, but it is not accurate to say that this finish cannot be chipped or scratched. While the laser finishing process may enhance the durability of the instruments, it does not make them completely immune to damage. Therefore, the statement is false.

Phenolics are classified as intermediate to low-level disinfectants because they have a broad spectrum of activity against various microorganisms, including bacteria, viruses, and fungi. They are effective in killing most vegetative bacteria and some viruses but may not be as effective against bacterial spores. Phenolics are commonly used in healthcare settings for disinfecting non-critical surfaces and equipment. While they have a good antimicrobial activity, they are not considered high-level disinfectants or sterilants, as they may not completely eliminate all types of microorganisms.

This statement is false because not all flexible endoscopes have internal channels. Some flexible endoscopes may have internal channels for various purposes such as irrigation or suction, but there are also flexible endoscopes without any internal channels. These endoscopes are typically used for procedures where channels are not required, such as diagnostic examinations. Therefore, the statement that all flexible endoscopes have internal channels is incorrect.

Iodophors are a member of the halogens disinfectant family. Halogens are a group of chemical elements that include iodine, chlorine, bromine, fluorine, and astatine. Iodophors are compounds that contain iodine and are commonly used as disinfectants due to their antimicrobial properties. They are effective against a wide range of microorganisms and are commonly used in healthcare settings for disinfection purposes.

When liquid chemicals are labeled as both a high-level disinfectant and a sterilant, it means that they are capable of killing or inactivating all forms of microbial life, including high levels of resistant microorganisms. Therefore, the time required to achieve sterilization, which is the complete elimination of all microorganisms, would not be longer than the time required to achieve high-level disinfection, which only kills or inactivates most microorganisms but not necessarily all. Hence, the statement is true.