Otterbein/Grant CRNA Basics Midterm Review - Machine

81 Questions | Total Attempts: 60

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CRNA Quizzes & Trivia

Questions and Answers
  • 1. 
    The American Society for Testing and Materials Standard ______ provides guidelines for anesthesia workstations and components.
  • 2. 
    The anesthesia machine checkout is standardized by the Department of Homeland Security.
    • A. 

      True

    • B. 

      False

  • 3. 
    The pressure in the breathing circuit of an anesthesia machine is limited to:
    • A. 

      14 kPa (140 cmH2O)

    • B. 

      10 kPa (100 cmH2O)

    • C. 

      12.5 kPa (125 cmH2O)

    • D. 

      It is limited by the values set by the anesthetist.

  • 4. 
    One of the required components of flowmeters is:
    • A. 

      Multiple controls for each gas.

    • B. 

      Uniquely shaped O2 flow knob.

    • C. 

      O2 flowmeter located to the left or upstream of the flowmeter bank.

    • D. 

      Oxygen flowmeter knob will be blue in color.

  • 5. 
    The oxygen flush valve provides flow of oxygen directly to the breathing circuit at 35-75L/min.  What else is true about utilizing O2 flush?
    • A. 

      Should only be used during the inspiratory phase.

    • B. 

      Increases risk of intraoperative awareness by diluting inhaled anesthetic agents.

    • C. 

      Places patient at risk for barotrauma.

    • D. 

      Is an optional feature that does not have to be present on all anesthesia machines.

  • 6. 
    The American Society of Anesthesiologists makes guidelines for:
    • A. 

      Anesthesia machine checkout

    • B. 

      Anesthesia machine obsolescence

    • C. 

      Anesthesia backstands

    • D. 

      Keurig's in the break room

  • 7. 
    The hanger yoke, yoke block with check valves, and the cylinder pressure gauge and regulators are part of which pressure system?
    • A. 

      Intermediate pressure system

    • B. 

      Low pressure system

    • C. 

      Mapleson circuit

    • D. 

      High pressure system

  • 8. 
    The _______ pressure system consists of everything distal to the flowmeter needle valve.
  • 9. 
    List the 5 tasks of oxygen.
  • 10. 
    In the event of a pipeline failure, what would you anticipate doing? 
    • A. 

      Open cylinders, leaving pipeline connected to the wall.

    • B. 

      Calculate time remaining on cylinders.

    • C. 

      Consider using ambu-bag and switching to total IV anesthesia.

    • D. 

      Increase FGF to maximize sedation from inhaled agents.

  • 11. 
    Which pressure is lower?
    • A. 

      Cylinder pressure after the 1st stage regulator.

    • B. 

      Pipeline pressure.

  • 12. 
    This type of valve moves in the direction it is pushed by gas flow, preventing gas leaks from the system.  An example is a check valve.
    • A. 

      Diaphragm

    • B. 

      Ball and spring

    • C. 

      Free floating

  • 13. 
    The first and second stage regulators are examples of ________ valves.
  • 14. 
    An E cylinder of N2O at 745 psi contains _____ L when full.
  • 15. 
    Write the equation for the Ideal Gas Law.
  • 16. 
    What is the critical temperature of N2O in Celsius?
  • 17. 
    What is the critical temperature of O2 in Celsius?
  • 18. 
    When a compressed gas is allowed to escape freely, the process is adiabatic and cooling occurs.  What is this describing?
    • A. 

      Magic

    • B. 

      Joule-Thompson Effect

    • C. 

      Newton's Third Law

    • D. 

      Pouiselle's law

  • 19. 
    This component of a medical gas cylinder only functions with excessive heat and excessive pressure.
    • A. 

      Combination pressure relief device

    • B. 

      Fusible plug

    • C. 

      Rupture disc

    • D. 

      Washer

  • 20. 
    What are hazards of central gas supplies?
    • A. 

      Crosses pipelines

    • B. 

      Hypoventilation

    • C. 

      Damage to pipelines during construction

    • D. 

      Foreign substances in pipeline

  • 21. 
    The oxygen pressure failure device aka fail-safe valve fully prevents hypoxic mixtures by sensing when oxygen flow falls to 25-26 psi.
    • A. 

      True

    • B. 

      False

  • 22. 
    The oxygen failure alarm:
    • A. 

      Sounds a medium priority alarm when oxygen pressure is

    • B. 

      Sounds a high priority alarm when oxygen pressure is

  • 23. 
    Flowmeter principles include _______ law that accounts for a pressure drop across a constriction.
  • 24. 
    You are administering 4L of N2O and 1L of O2 and 1L of air, what is your FiO2? Round to the nearest whole number.
  • 25. 
    This law describes how an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
    • A. 

      Graham's

    • B. 

      Pouisuelle's

    • C. 

      Laplace

    • D. 

      Bernoulli's

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