Anesthesia Technology Exam Questions And Answers

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  • 1/102 Questions

    What is DISS?

    • Diameter index safety system
    • Pin index safety system
    • Desflurane induction safety standards
    • What a Super senior will do to you at the hospital after asking them a stupid question
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About This Quiz

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Whether you are preparing for a certification exam, or a job interview, or simply wish to stay updated with the latest technological advancements, this quiz offers a valuable opportunity to assess your level of expertise. You’ll receive immediate feedback on each answer, helping you to learn from mistakes and deepen your understanding of complex concepts.

Anesthesia Technology Exam Questions And Answers - Quiz

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  • 2. 

    What is PISS?

    • Diameter index safety system

    • Premature induction sevoflurane system

    • Pin index safety system

    • How most Irishmen feel at the end of a week of CRNA school without drinking beer

    Correct Answer
    A. Pin index safety system
    Explanation
    The correct answer is Pin index safety system. The Pin index safety system is a safety mechanism used in medical gas cylinders to ensure that the correct gas is being delivered to the patient. It involves matching the pins on the cylinder valve with the corresponding holes on the regulator, preventing the accidental connection of the wrong gas. This system is crucial in preventing gas mix-ups and ensuring patient safety during medical procedures.

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  • 3. 

    Which of these are thw parts of the medical gas cylinder?

    • Cylinder

    • Valve

    • Pressure Relief Device

    • Conical Depression

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The medical gas cylinder consists of several parts, including the cylinder itself, the valve, the pressure relief device, and the conical depression. Each of these components plays a crucial role in ensuring the safe storage and dispensing of medical gases. The cylinder holds the gas, the valve controls the flow, the pressure relief device prevents excessive pressure buildup, and the conical depression allows for easy connection to medical equipment. Therefore, all of the above options are correct.

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  • 4. 

    What is a hazard of a pipeline system?

    • Foreign material

    • Gaseous

    • Water

    • Bacterial

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The hazard of a pipeline system includes the presence of foreign material, gaseous substances, water, and bacterial contamination. All of these factors pose risks and can potentially cause damage or disruption to the pipeline system. Foreign material such as debris or particles can clog the pipes or cause blockages, gaseous substances like leaks or explosions can pose safety hazards, water can cause corrosion or erosion, and bacterial contamination can lead to degradation or contamination of the transported substances. Therefore, all of the options mentioned above contribute to the hazards associated with a pipeline system.

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  • 5. 

    Which patient would benefit from a prolonged expiratory time?

    • CHF

    • COPD

    • CAD

    • Anterior cruciate ligament tear

    Correct Answer
    A. COPD
    Explanation
    Patients with COPD would benefit from a prolonged expiratory time. In COPD, there is airway obstruction, leading to difficulty in exhaling air. By prolonging the expiratory time, it allows more time for the patient to fully exhale and empty their lungs, preventing air trapping and improving ventilation. This can help alleviate symptoms such as shortness of breath and improve overall lung function in COPD patients.

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  • 6. 

    Which of the following are ventilator components?

    • Safety release valve

    • Driving gas supply

    • Injector

    • Bellows assembly

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "all of the above". All of the mentioned components - safety release valve, driving gas supply, injector, and bellows assembly - are indeed ventilator components. Each of these components plays a crucial role in the functioning of a ventilator. The safety release valve ensures the safe release of excess pressure, the driving gas supply provides the necessary gas for ventilation, the injector controls the flow of gas, and the bellows assembly helps in the delivery of breaths to the patient.

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  • 7. 

    What are standards?

    • Accepted methods of practice

    • Legal mandates

    • Based upon the MAC of a volatile agent

    • FIU let Chris into the CRNA program, they obviously have no standards, then why should I!

    Correct Answer
    A. Accepted methods of practice
    Explanation
    Standards refer to accepted methods of practice that are widely recognized and followed within a particular field or industry. These standards serve as guidelines for professionals to ensure that they are adhering to the best practices and providing quality services. They are not legal mandates but rather voluntary guidelines that professionals choose to follow. The statement about the MAC of a volatile agent is unrelated and does not provide any explanation for the correct answer.

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  • 8. 

    Which of the following comprises the low-pressure system?

    • Flowmeter tubes

    • Vaporizers

    • Check valves

    • Common gas outlet

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The low-pressure system comprises flowmeter tubes, vaporizers, check valves, and a common gas outlet. These components work together to regulate and control the flow of gas at a lower pressure. The flowmeter tubes measure the amount of gas being delivered, the vaporizers convert liquid gas into a gaseous state, the check valves ensure that gas flows in one direction only, and the common gas outlet is where the gas is released. Therefore, all of the mentioned components are part of the low-pressure system.

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  • 9. 

    The purpose of the safety devices in the low flow system is: 

    • Increase the saturated vapor pressure

    • Minimize the density of the gas

    • Minimize turbulence throughout the system

    • Decrease the risk of a hypoxic mixture

    Correct Answer
    A. Decrease the risk of a hypoxic mixture
    Explanation
    The purpose of safety devices in a low flow system is to decrease the risk of a hypoxic mixture. A hypoxic mixture refers to a gas mixture that has a lower concentration of oxygen than what is required for normal respiration. By having safety devices in place, such as oxygen sensors or alarms, the system can detect and prevent the occurrence of hypoxia, ensuring that the gas mixture delivered to the user is safe and contains an adequate amount of oxygen.

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  • 10. 

    What is the PISS of Air?

    • 1,5

    • 2,5

    • 3,5

    • 4,5

    Correct Answer
    A. 1,5
    Explanation
    The PISS (Pin Index Safety System) for medical air is 1,5. This system is designed with specific pin positions to ensure that only the correct gas cylinder is connected to the appropriate supply system. For medical air, the pins are located at positions 1 and 5. This setup helps prevent the accidental connection of a medical air cylinder to a system intended for another type of gas, ensuring safe and correct use in healthcare settings.

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  • 11. 

    What is vaporization?

    • The amount of pressure in a cylinder

    • Conversion of a liquid to a gas

    • Gas phase of a substance that is liquid at room temperature and atmospheric pressure

    • All of the above

    Correct Answer
    A. Conversion of a liquid to a gas
    Explanation
    Vaporization refers to the process of converting a liquid into a gas. This occurs when a substance's temperature reaches its boiling point, causing the molecules to gain enough energy to break free from their liquid state and enter the gaseous phase. The other options mentioned, such as the amount of pressure in a cylinder and the gas phase of a substance that is liquid at room temperature and atmospheric pressure, are not accurate definitions of vaporization.

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  • 12. 

    Why would set TV differ from delivered TV

    • Compliance

    • Losses

    • Leaks

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The reason why set TV would differ from delivered TV is due to compliance issues, losses, and leaks. Compliance refers to the adherence to certain regulations or standards, which may vary between the set TV and the TV that is actually delivered. Losses can occur during the transportation or delivery process, resulting in a difference between the set TV and the one that is received. Similarly, leaks can also cause a discrepancy between the set TV and the delivered TV, as they can lead to product damage or loss during transit. Therefore, all of these factors contribute to the difference between the set TV and the delivered TV.

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  • 13. 

    How often must cylinders be inspected?

    • 2 years

    • 3 years

    • 5 years

    • 15 years

    Correct Answer
    A. 5 years
    Explanation
    Cylinders must be inspected every 5 years. This is because cylinders are subject to wear and tear over time, and regular inspections help ensure their safety and functionality. By inspecting cylinders every 5 years, any potential issues or damage can be identified and addressed promptly, reducing the risk of accidents or failures. Regular inspections also help maintain compliance with safety regulations and standards.

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  • 14. 

    Name the gas that we use as a carrier gas for agents. 

    • Air

    • N2O

    • Oxygen

    • CO

    • CO2

    Correct Answer
    A. Oxygen
    Explanation
    Oxygen is the main gas used with anesthetic agents during medical procedures. It's important because it ensures the patient gets enough oxygen to breathe safely while they are asleep from the anesthesia. Oxygen helps carry the anesthesia through the body and keeps the patient's oxygen levels stable during surgery.

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  • 15. 

    Modern vaporizers are within the breathing circuit. True or false? 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Modern vaporizers are not within the breathing circuit; they are outside the breathing circuit. This setup is known as "out of circuit." The design helps control the concentration of anesthetic agent more accurately as it vaporizes and mixes the anesthetic gas with fresh gas (like oxygen) before it enters the breathing circuit. This method is safer and provides better control over the amount of anesthesia a patient receives.

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  • 16. 

    What is a vaporizer interlock mechanism?

    • Prevents the vaporizer from falling to floor and releasing its contents

    • Prevents the wrong agent from being placed into the vaporizer

    • Allows specific flowover to the breathing circuit

    • Prevents more than 1 vaporizer to be turned on at one time

    Correct Answer
    A. Prevents more than 1 vaporizer to be turned on at one time
    Explanation
    A vaporizer interlock mechanism is a safety feature that prevents more than one vaporizer from being turned on at the same time. This is important because having multiple vaporizers operating simultaneously can lead to incorrect agent delivery and potentially harmful effects on the patient. By limiting the activation of multiple vaporizers, the interlock mechanism ensures that only one vaporizer is in use at any given time, promoting patient safety and accurate administration of anesthesia.

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  • 17. 

    When is usually seen with the pumping effect and overdosing?

    • Low levels of anesthetic agent in chamber

    • Low flows

    • Low dial settings

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The pumping effect and overdosing are typically seen with low levels of anesthetic agent in the chamber, low flows, and low dial settings. The pumping effect occurs when fluctuations in pressure cause inconsistent delivery of the anesthetic agent, often leading to unintentional overdosing. This can happen due to various factors such as low levels of the agent in the vaporizer, low flow rates of carrier gases, or improperly set low dial settings on the vaporizer. All these conditions contribute to the irregular delivery and concentration of the anesthetic, which can affect the controlled and safe administration of anesthesia during medical procedures.

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  • 18. 

    What is the PISS of N2O?

    • 1,5

    • 2,5

    • 3,5

    • 4,5

    Correct Answer
    A. 3,5
    Explanation
    The PISS (Pin Index Safety System) for nitrous oxide (N2O) is 3,5. This safety system uses pins arranged in specific positions to make sure that the correct gas cylinder is attached to its matching gas supply system in medical settings. For nitrous oxide, the pins are located at positions 3 and 5. This setup helps prevent the accidental connection of a nitrous oxide cylinder to a system meant for a different gas, ensuring safe and proper usage.

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  • 19. 

    Vaporization depends on what?

    • Vapor pressure of the agent

    • Temperature of the environment

    • Amount of carrier gas used

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Vaporization depends on the vapor pressure of the agent, which is the measure of how easily a substance evaporates. It also depends on the temperature of the environment, as higher temperatures increase the rate of vaporization. Additionally, the amount of carrier gas used can affect vaporization, as it can help carry the agent into a vaporized state. Therefore, all of these factors - vapor pressure, temperature, and amount of carrier gas - contribute to the process of vaporization.

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  • 20. 

    What is the most accurate way of identifying cylinders?

    • Weight

    • PSIG

    • Label

    • Olfactory thrshold

    Correct Answer
    A. Label
    Explanation
    The most accurate way of identifying cylinders is through the use of labels. Labels provide important information such as the contents of the cylinder, any hazards associated with it, and safety instructions. This ensures that cylinders are properly identified and handled, reducing the risk of accidents or mishandling. Weight, PSIG (pounds per square inch gauge), and olfactory threshold (sense of smell) may provide some information but are not as reliable or comprehensive as labels.

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  • 21. 

    Which of these agencies writes standards for the prevention of fires?

    • DOT

    • FDA

    • NIOSH

    • NFPA

    • OSHA

    Correct Answer
    A. NFPA
    Explanation
    NFPA, or the National Fire Protection Association, is the agency that writes standards for the prevention of fires. They develop and publish codes and standards that are widely used and adopted by various organizations and industries to ensure fire safety. These standards cover a wide range of areas such as building construction, electrical systems, hazardous materials, and fire protection equipment. NFPA's standards are recognized and respected globally, making them a leading authority in fire prevention and safety.

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  • 22. 

    Who handles most standards affecting anesthesia?

    • FDA

    • NIOSH

    • ASTM

    • CGA

    • NFPA

    Correct Answer
    A. ASTM
    Explanation
    ASTM, or the American Society for Testing and Materials, handles most standards affecting anesthesia. ASTM is an international organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services. They work closely with experts in the field to establish standards that ensure the safety and effectiveness of anesthesia equipment, procedures, and practices. By setting these standards, ASTM helps to promote uniformity and quality in the field of anesthesia.

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  • 23. 

    If the APL valve is open and the ventilation bag squeezed where will all of it contents go

    • Scavenger system

    • The patient

    • The circle system

    • To the hospital gas supply

    Correct Answer
    A. Scavenger system
    Explanation
    When the APL valve is open and the ventilation bag is squeezed, the contents of the bag will be directed towards the scavenger system. The scavenger system is responsible for removing waste gases from the breathing circuit and expelling them safely outside the operating room. Therefore, when the APL valve is open, any excess gas from the bag will be directed towards the scavenger system for proper disposal.

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  • 24. 

    Which anesthetic agent requires supplied heat.

    • Sevo

    • Iso

    • Des

    • Halothane

    Correct Answer
    A. Des
    Explanation
    Desflurane is the anesthetic agent that requires supplied heat. This is because Desflurane has a very low boiling point and vapor pressure, which makes it difficult to maintain as a liquid at room temperature. In order to keep it in a liquid state, it needs to be heated and delivered through a special vaporizer. This heating process helps to ensure that the Desflurane is delivered in the correct concentration to the patient during anesthesia.

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  • 25. 

    What is the normal tidal volume for a patient?

    • 700cc

    • 600cc

    • 10-15cc/kg

    • 10-15cc/kg of ideal body weight

    Correct Answer
    A. 10-15cc/kg of ideal body weight
    Explanation
    The normal tidal volume for a patient is typically measured as 10-15cc/kg of ideal body weight. Tidal volume refers to the amount of air that is inhaled and exhaled during normal breathing. This measurement is important for determining the appropriate amount of ventilation required for a patient based on their body weight. By calculating tidal volume based on ideal body weight, healthcare professionals can ensure that the patient is receiving adequate ventilation without over- or under-ventilating them.

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  • 26. 

    Which agency enforces a safe working environment?

    • FDA

    • NIOSH

    • OSHA

    • DOT

    • MLBPA

    Correct Answer
    A. OSHA
    Explanation
    OSHA, or the Occupational Safety and Health Administration, is the agency responsible for enforcing a safe working environment. They set and enforce standards to ensure that employers provide a safe and healthy workplace for their employees. OSHA conducts inspections, investigates complaints, and imposes penalties for violations of safety regulations. Their goal is to prevent work-related injuries, illnesses, and fatalities by promoting safe working conditions and providing education and training on workplace safety.

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  • 27. 

    Where is the best place to have the oxygen flowmeter?

    • Furthest to left

    • In the middle

    • Furthest to right

    • Just outside the OR

    Correct Answer
    A. Furthest to right
    Explanation
    The best place to have the oxygen flowmeter is furthest to the right. This is because in most cultures, people read from left to right, so placing the flowmeter on the right ensures that it is the last thing seen. Additionally, placing it on the right allows for easy access and visibility, as it is typically the side that is more easily reached by medical professionals.

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  • 28. 

    What is the minimum o2: N2O ration?

    • 1:1

    • 1:2

    • 1:3

    • 1:4

    Correct Answer
    A. 1:3
    Explanation
    The minimum oxygen (O2) to nitrous oxide (N2O) ratio in anesthesia machines is typically 1:3. This safety feature is known as the oxygen-nitrous oxide ratio controller or fail-safe system. It ensures that nitrous oxide cannot be delivered without a minimum amount of oxygen. This ratio prevents hypoxia by guaranteeing that the patient receives at least 25% oxygen at all times during anesthesia, where oxygen is not less than one part to every three parts of nitrous oxide. The 1:3 ratio is a critical safety standard in anesthetic practices to maintain adequate oxygenation and prevent complications associated with low oxygen levels.

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  • 29. 

    Define volatile anesthetic agent.

    • Molecules of a liquid that break away and enter the space at the top of the vaporizer

    • Pressure created when the molecules bombard the walls of the containe

    • Molecules entering the liquid phase

    • Liquid that has a tendency to change to a vapor at standard temperature and pressure

    Correct Answer
    A. Liquid that has a tendency to change to a vapor at standard temperature and pressure
    Explanation
    A volatile anesthetic agent refers to a liquid substance that has a tendency to change into a vapor form at standard temperature and pressure. This means that the molecules of the liquid have a high vapor pressure, causing them to easily evaporate and form a gas. This property is crucial in anesthesia as it allows the agent to be easily inhaled and distributed throughout the body, inducing and maintaining a state of unconsciousness during medical procedures.

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  • 30. 

    When is usually seen with the pumping effect and inadequate dose

    • High flows

    • Oxygen flush

    • Manual ventilation

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Common issues like pumping effects and inadequate dosing of anesthetic gases can occur under several conditions, impacting the consistency and safety of anesthesia during procedures. High gas flows through the vaporizer can cause turbulence, leading to erratic outputs of anesthetic gases because the gases don't have sufficient time to vaporize properly. Using the oxygen flush feature can rapidly increase oxygen flow, diluting the anesthetic gas concentration and resulting in inadequate dosing. Additionally, manual bag ventilation might cause pressure fluctuations that disrupt the vaporization and delivery of the anesthetic agent. Together, these scenarios can lead to fluctuations in delivery pressure and volume, making it challenging to maintain consistent and adequate anesthesia levels, thus potentially compromising patient safety.

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  • 31. 

    Which type of scavenger system requires relief valves

    • Open scavenger system

    • Closed scavenger system

    • A Yankee fan! Not only are they scavengers they are part of the "Evil Empire"

    Correct Answer
    A. Closed scavenger system
    Explanation
    A closed scavenger system requires relief valves because it is a sealed system that recirculates and filters gases, such as anesthetic gases, to remove waste products. The relief valves are necessary to maintain the proper pressure and prevent any buildup of excess gases within the system. This ensures the safety and efficiency of the scavenging process by allowing the release of any excess gases that may accumulate.

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  • 32. 

    What is the PISS of O2?

    • 1,5

    • 2,5

    • 3,5

    • 4,5

    Correct Answer
    A. 2,5
    Explanation
    The PISS (Pin Index Safety System) for oxygen (O2) is 2,5. This system uses a unique arrangement of pins on the gas yoke and corresponding holes on the gas cylinder to ensure that only the correct medical gas is connected to the appropriate gas supply system. For oxygen, the pins are set at positions 2 and 5, preventing accidental connections to other gas types and ensuring safe and proper use in medical settings.

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  • 33. 

    When is an O2 analyzer reading erroneous?

    • When an LMA is used

    • A deflated ETT cuff

    • When used with nasal cannula

    • When it is used higher than sea level

    Correct Answer
    A. When used with nasal cannula
    Explanation
    An O2 analyzer reading can indeed be erroneous when used with a nasal cannula. This device is used to deliver supplemental oxygen and is not designed to create a closed system. Air can mix with the supplemental oxygen, especially if the flow rate is low or if the patient is breathing through their mouth, which dilutes the oxygen concentration. This mixture can lead to inaccurately high readings of ambient air and inaccurately low readings of oxygen levels. It's important to ensure that the analyzer is correctly positioned and that patient conditions and equipment use are adequately monitored to avoid such errors.

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  • 34. 

    Name the agency that writes criteria for OSHA to enforce. 

    • FDA

    • MLBPA

    • NIOSH

    • DOT

    • NFPA

    Correct Answer
    A. NIOSH
    Explanation
    NIOSH, the National Institute for Occupational Safety and Health, is the agency responsible for writing criteria for OSHA (Occupational Safety and Health Administration) to enforce. OSHA relies on NIOSH's research and recommendations to establish and enforce workplace safety regulations. NIOSH conducts studies, evaluates workplace hazards, and provides guidance to OSHA in order to protect workers' health and safety.

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  • 35. 

    The most volatile agents have.....

    • Low boiling point

    • High heat of vaporization

    • High specific heats

    • All of the above

    Correct Answer
    A. Low boiling point
    Explanation
    The most volatile agents typically have a low boiling point. Volatility in chemical agents refers to how easily a substance can vaporize, turning from a liquid into a gas. A lower boiling point means that the substance can become a vapor at a lower temperature, making it more volatile. This characteristic is crucial for anesthetic agents used in medical settings, as it affects how they are administered and controlled during procedures. High heat of vaporization and high specific heats are separate properties that do not directly indicate volatility.

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  • 36. 

    What is the SVP of Enflurane?

    • 243

    • 239

    • 175

    • 23

    Correct Answer
    A. 175
    Explanation
    The Saturated Vapor Pressure (SVP) of enflurane is 175 mmHg at 20°C. This measurement indicates a moderate tendency to evaporate compared to some other anesthetic agents with higher SVPs. The SVP is a measure of how readily a liquid anesthetic can convert into a vapor at a given temperature, influencing how it is managed and delivered during medical procedures. Enflurane's SVP supports its use in controlled vaporization for anesthesia, ensuring that it can be effectively regulated for patient safety and comfort during surgeries.

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  • 37. 

    What is the last safeguard before the gases reach the patient?

    • ETT

    • Thorpe tube

    • Oxygen analyzer

    • Capnograph

    Correct Answer
    A. Thorpe tube
    Explanation
    The Thorpe tube is the last safeguard before the gases reach the patient. The Thorpe tube is a device that is used to monitor and measure the flow of gases in a breathing circuit. It is typically located between the patient and the anesthesia machine. The Thorpe tube helps to ensure that the correct amount of gases is being delivered to the patient, and it can also detect any abnormalities or deviations in the gas flow. This allows for timely intervention and adjustment to prevent any potential harm to the patient.

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  • 38. 

    Though rare, what will be seen in the presence of the pressurizing effect?

    • Wrong agent being dispensed

    • Underdosing

    • Overdosing

    • None of the above

    Correct Answer
    A. Underdosing
    Explanation
    In the presence of the pressurizing effect, underdosing will be seen. This means that a smaller amount or lower dosage of the intended agent will be dispensed. The pressurizing effect may cause a decrease in the amount of the agent being dispensed, resulting in underdosing. This is a rare occurrence, but it can happen due to various factors such as malfunctioning equipment or incorrect settings.

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  • 39. 

    What is the heat of vaporization of Desflurane?

    • 20C

    • 39C

    • 25C

    • 10C

    Correct Answer
    A. 39C
    Explanation
    The heat of vaporization for desflurane is approximately 39 calories per gram. This value represents the amount of heat energy required to convert one gram of liquid desflurane into vapor at its boiling point without changing its temperature. Desflurane's relatively high heat of vaporization is a factor in how it is used in medical settings, particularly in how it affects the temperature control in vaporizers. This property also influences the efficiency of its use during anesthesia, as it requires more energy to vaporize compared to other anesthetics.

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  • 40. 

    Which VAA is used in the TEC-6 vaporizer?

    • ISO

    • DES

    • SEVO

    • Halothane

    Correct Answer
    A. DES
    Explanation
    The TEC-6 vaporizer is specifically designed for desflurane (DES), not diethyl ether as mentioned. Desflurane is a Volatile Anesthetic Agent (VAA) that requires specialized vaporizers due to its unique properties, such as a high vapor pressure and a very low boiling point. The TEC-6 vaporizer uses a heated, pressurized system to accurately control the delivery of desflurane, ensuring that it vaporizes correctly and is administered safely during anesthesia. This technology is crucial for managing desflurane's rapid changes in concentration with patient breathing patterns and circulatory dynamics.

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  • 41. 

    There are ____ sprockets on an oxygen flowmeter. 

    • 10

    • 2

    • 14

    • 23

    • I don't know I was never good at math

    Correct Answer
    A. 2
    Explanation
    There are typically two sprockets on an oxygen flowmeter. These sprockets are part of the mechanism that helps regulate and measure the flow rate of oxygen being delivered. The specific number of sprockets can vary depending on the design and manufacturer of the flowmeter.

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  • 42. 

    Define regulations

    • Accepted methods of practice

    • Legal mandate

    • Micro-adjustments to the vaporizer

    • Who cares I am just a SRNA

    Correct Answer
    A. Legal mandate
    Explanation
    The term "regulations" refers to rules or guidelines that are set by a governing body or authority. These regulations serve as a legal mandate, meaning they are legally required to be followed. In this context, regulations can be seen as accepted methods of practice that must be adhered to. The phrase "Micro-adjustments to the vaporizer" and the statement "Who cares I am just a SRNA" are unrelated and do not provide any relevant information to explain the correct answer.

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  • 43. 

    The standard size in the U.S. for a scavenger system hose is ________. 

    • 19mm

    • 20mm

    • 30mm

    • 33mm

    Correct Answer
    A. 19mm
    Explanation
     The standard size for a scavenger system hose in the U.S. is 19mm. This size is used to make sure the scavenging system works right. The scavenger system removes extra gases from areas where medical staff work, keeping the air safe. The 19mm hose is specially sized to fit the equipment used in medical settings, helping to efficiently capture and remove unwanted gases.

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  • 44. 

    Which VAA is used in the TEC-5 Vaporizer?

    • ISO

    • DES

    • SEVO

    • Halothane

    Correct Answer
    A. SEVO
    Explanation
    The correct answer is SEVO because it is commonly used as a volatile anesthetic agent in the TEC-5 vaporizer. SEVO, also known as sevoflurane, is a halogenated ether that is widely used in modern anesthesia due to its low blood solubility, rapid induction and emergence, and minimal metabolism. It provides smooth and reliable anesthesia, making it a popular choice in medical settings.

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  • 45. 

    What is the boiling point in celsius of Iso?

    • 23

    • 48

    • 50

    • 58

    Correct Answer
    A. 48
    Explanation
    The boiling point of isoflurane (Iso) is approximately 48°C. This boiling point is considered moderate among inhalation anesthetics, allowing for stable and controlled vaporization. The property ensures that isoflurane can be effectively delivered using standard anesthetic vaporizers without requiring excessively high temperatures. This makes it suitable for a wide range of surgical procedures, providing reliable and adjustable anesthesia levels to meet various medical needs.

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  • 46. 

    TV is given at 10-15ml/kg can you clarify?

    • Based on a patients TBW

    • Based on a patients ideal body weight

    • Based on the patients surface area

    • All of the above

    Correct Answer
    A. Based on a patients ideal body weight
    Explanation
    The correct answer is based on a patient's ideal body weight. When determining the appropriate TV (tidal volume) for a patient, it is important to consider their ideal body weight rather than their actual body weight or surface area. This is because tidal volume is calculated based on the lung size and function of an individual, which is more accurately represented by their ideal body weight. Using the actual body weight may result in over-ventilation or under-ventilation, leading to potential complications. Surface area is not directly related to lung size, so it is not used to determine the TV.

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  • 47. 

    Which of the following regulate gas cylinders?

    • FDA

    • NIOSH

    • OSHA

    • DOT

    • MLBPA

    Correct Answer
    A. DOT
    Explanation
    The Department of Transportation (DOT) regulates gas cylinders. They have established regulations and standards for the safe transportation, handling, and storage of hazardous materials, including gas cylinders. These regulations ensure that gas cylinders are manufactured, tested, and labeled properly, and that they are transported and stored in a safe manner to prevent accidents or leaks that could result in harm to people or the environment.

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  • 48. 

    Which of the following is NOT a component of the anesthesia machine?

    • Vaporizer 

    • Ventilator 

    • Defibrillator 

    • Scavenging system

    Correct Answer
    A. Defibrillator 
    Explanation
    While a defibrillator is a crucial piece of equipment in an operating room, it is not a component of the anesthesia machine itself. The anesthesia machine primarily focuses on delivering a controlled mixture of anesthetic gases and oxygen to the patient, along with providing ventilation support. The vaporizer vaporizes liquid anesthetic agents, the ventilator assists or controls breathing, and the scavenging system removes waste gases. A defibrillator, on the other hand, is a separate device used to deliver an electric shock to restore a normal heart rhythm in cases of cardiac arrest.

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  • 49. 

    What is the heat of vaporization of Isoflurane?

    • 25

    • 20

    • 39

    • 10

    Correct Answer
    A. 20
    Explanation
    The heat of vaporization for isoflurane is approximately 20 calories per gram. This value indicates the amount of energy required to convert one gram of liquid isoflurane into vapor at its boiling point, while maintaining the same temperature. Isoflurane's moderate heat of vaporization means it vaporizes at a reasonable rate, which helps in controlling its delivery during anesthesia. This property ensures that isoflurane can be effectively and efficiently administered to patients through anesthetic vaporizers, maintaining stable anesthetic levels during surgeries.

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Farah Naz |MBBS |
Medical Writer
Farah Naz is a Medical Professional with a Bachelor of Medicine and Bachelor of Surgery (MBBS) from Dow University of Health Sciences. Her academic journey included internships in Radiology, Cardiology, and Neurosurgery. Her contributions to medical research extend to two publications in medical journals, solidifying her position as a promising addition to the field.

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