Chemistry And Physics Of Anesthesiology Quiz! Trivia

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Chemistry And Physics Of Anesthesiology Quiz! Trivia

Chemistry and physics of anesthesiology quiz trivia. An anesthetist deals with different liquid and gasses under pressure at varying temperature and volume. It is therefore important to understand the changes that each of them go through and what to term as odd. In this quiz, you will get to test out how much you know about these drugs, their effects, uses as well as quantities to use. Do give it a try and see how informed you are.


Questions and Answers
  • 1. 
    The expression that for a fixed mass of gas at constant temperature, the product of pressure and volume is constant is known as:
    • A. 

      Graham's law

    • B. 

      Bernoulli's law

    • C. 

      Boyle's law

    • D. 

      Dalton's law

    • E. 

      Charles' law

  • 2. 
    The pressure gauge on size "E" compressed-gas cylinder containing O2 reads 1,600 pounds per square inch absolute temperature (psia). How long could O2 be delivered from this cylinder at a rate of 2 L/min
    • A. 

      90 min

    • B. 

      140 min

    • C. 

      245 min

    • D. 

      320 min

    • E. 

      Cannot be calculated

  • 3. 
    An otherwise healthy 25-year-old patient is udergoing a femoral hernia repair. General anesthesia is induced with thiopental, 3,5 mg/kg, and after administration of succinylcholine, 1,5 mg/kg, tracheal intubation is performed under direct laryngoscopy without difficulty. Bilateral breath sounds are auscultated and end-expired CO2 is noted on mass spectrometer. Anesthesia is maintaned with isoflurane and N2O, 50% in O2, and the patient's lungs are mechanically vemtilated. Suddenly, the "low-arterial-saturation" warning signal on pulse oximeter alarms. After being disconnected from the anesthesia machine, the patient is ventilated with AMBU bag with 100% O2 without difficulty and arterial saturation quickly improves. During inspection of your anesthesia equipment, you notice that bobbin in O2 rotameter is not rotating. This most likely indicates:
    • A. 

      The flow of N2O through the O2 rotameter

    • B. 

      No flow of O2 through the O2 rotameter

    • C. 

      A flow of O2 through the O2 rotameter that is markedly lower than indicated

    • D. 

      A leak in the O2 rotameter above the bobbin

    • E. 

      A leak in the O2 rotameter below the bobbin

  • 4. 
    The O2 pressure-sensor-shutoff valve requires what O2 pressure to remain open and allow N2O flow into the N2O rotameter?
    • A. 

      10 psia

    • B. 

      25 psia

    • C. 

      50 psia

    • D. 

      100 psia

    • E. 

      600 psia

  • 5. 
    A copper kettle vaporizer is filled with a volitile anesthetic that is a saturated vapor pressure of 304 mm Hg at 20ºC. The carrier-gas flow through the vaporizing chamber is 90 ml/min. What diluent fresh-gas flow is required to deliver from the vaporizer a final concentration of the anesthetic of 1,5%?
    • A. 

      1,000 ml/min

    • B. 

      2,000 ml/min

    • C. 

      3,000 ml/min

    • D. 

      4,000 ml/min

    • E. 

      5,000 ml/min

  • 6. 
    The second-stage O2 pressure regulator delivers a constant O2 pressure to the rotameters of:
    • A. 

      4 psia

    • B. 

      8 psia

    • C. 

      16 psia

    • D. 

      32 psia

    • E. 

      64 psia

  • 7. 
    The highest trace concentration of N2O allowed in the operating room atmosphere by the National Institute for Occupational Safety and Health (NIOSH) is:
    • A. 

      1 ppm

    • B. 

      5 ppm

    • C. 

      25 ppm

    • D. 

      50 ppm

    • E. 

      100 ppm

  • 8. 
    Halothane vaporizer will deliver an accurate concentration of an unknown volatile anesthetic if the latter shares which property with halothane?
    • A. 

      Molecular weight

    • B. 

      Viscosity

    • C. 

      Vapor pressure

    • D. 

      Blood/Gas partition coefficient

    • E. 

      Oil/Gas partition coefficient

  • 9. 
    After entering the anesthesia machine at 45 to 55 psia (from a compressed-gas cylinder), O2 is directed to provide for which of the following functions of the anesthesia machine?
    • A. 

      A pneumatic source for the gas-driven anesthesia ventilator

    • B. 

      The O2 supply fail-safe system

    • C. 

      To open the pressure-sensor shutoff valve

    • D. 

      O2 to the O2 rotameters

    • E. 

      All of above

  • 10. 
    Which of the following rotameter flow indicators is read in the middle of the dial?
    • A. 

      Bobbin

    • B. 

      "H" float

    • C. 

      Ball float

    • D. 

      Skirted float

    • E. 

      Nonrotating float

  • 11. 
    When the pressure gauge on size "E" compressed-gas cylinder, containing N2O begins to fall from its previous constant pressure of 750 psia, how many liters of gas remain in cylinder?
    • A. 

      200

    • B. 

      400

    • C. 

      600

    • D. 

      800

    • E. 

      Cannot be calculated

  • 12. 
    The maximum volume of CO2 that can be absorbed by 100 g of absorbent granules is:
    • A. 

      5 L

    • B. 

      10 L

    • C. 

      15 L

    • D. 

      20 L

    • E. 

      25 L

  • 13. 
    If the diameter of any intravenous catheter is doubled, flow through the catheter will
    • A. 

      Decrease by factor of 2

    • B. 

      Decrease by factor of 4

    • C. 

      Increase by factor of 8

    • D. 

      Increase by factor of 16

    • E. 

      Increase by factor of 32

  • 14. 
    Of the following statements concerning the safe storage of compressed-gas cylinders, choose the one that is false.
    • A. 

      Should not be handled with oily hands

    • B. 

      Should not be stored near flammable material

    • C. 

      Should not be stored in extreme heat or cold

    • D. 

      Paper or plastic covers should not be removed from the cylinders before storage

    • E. 

      All of the above statements are true

  • 15. 
    Compliance is defined as
    • A. 

      A change in pressure per unit change in volume

    • B. 

      A change in volume per unit change in pressure

    • C. 

      A change in pressure per unit change in flow

    • D. 

      A change in flow per unit change in pressure

    • E. 

      A change in volume per unit change in flow

  • 16. 
    A mechanical ventilator is set to deliver a Vt of 500 ml at a rate of 10 breaths/min and an inspiratory-to-expiratory (I:E) ratio of 1:2. The fresh-gas flow into the breathing circuit is 6 L/min. In a patient with normal total pulmonary compliance, the actual Vt delivered to the patient be
    • A. 

      400 ml

    • B. 

      500 ml

    • C. 

      600 ml

    • D. 

      700 ml

    • E. 

      800 ml

  • 17. 
    A mechanical ventilator is set to deliver a Vt of 500 ml at a rate of 6 breaths/min and an inspiratory-to-expiratory (I:E) ratio of 1:2. The fresh-gas flow into the breathing circuit is 6 L/min. In a patient with normal total pulmonary compliance, the actual Vt delivered to the patient be
    • A. 

      600 ml

    • B. 

      700 ml

    • C. 

      800 ml

    • D. 

      900 ml

    • E. 

      1000 ml

  • 18. 
    Vaporizers for which of the following volatile anesthetics could be used interchangeably with accurate delivery o the concentration of anesthetic set on the vaporizer dial?
    • A. 

      Halothane, enflurane, and isoflurane

    • B. 

      Enflurane, isoflurane

    • C. 

      Halothane, enflurane

    • D. 

      Halothane, isoflurane

    • E. 

      None of above

  • 19. 
    Which of the following is the basis for the mechanism of air-O2 dilution systems that utilize the Venturi principle?
    • A. 

      Newton's law

    • B. 

      Hagen-Poiseuille's law

    • C. 

      Henry's law

    • D. 

      Graham's law

    • E. 

      Bernoulli's law

  • 20. 
    According to National Institute for Occupational Safety and Health (NIOSH) regulations, the highest concentration of volatile anesthetic contamination allowed in the operating room atmosphere when administred in conjunction with N2O is
    • A. 

      0,5 ppm

    • B. 

      2 ppm

    • C. 

      5 ppm

    • D. 

      25 ppm

    • E. 

      50 ppm

  • 21. 
    The device on anesthesia machines that most reliably detects delivery of hypoxic gas mixtures is the
    • A. 

      Fail-safe valve

    • B. 

      O2 analyser

    • C. 

      Second-stage O2 pressure regulator

    • D. 

      Promotion-limiting control system

    • E. 

      Diameter index safety system

  • 22. 
    A ventilator pressure-relief valve stuck in the closed position can result in
    • A. 

      Barotrauma

    • B. 

      Hypoventilation

    • C. 

      Hypoxia

    • D. 

      Hyperventilation

    • E. 

      A low breathing-circuit pressure

  • 23. 
    The agency responsible for manufacturing and testing compressed gases is the
    • A. 

      Compressed Gas Association

    • B. 

      Department of Transportation

    • C. 

      Food and Drug Administration

    • D. 

      National Fire Protection Association

    • E. 

      Joint Commission on Accreditation of Healthcare Organizations

  • 24. 
    The ratio of the density of a solution to the density of cerebrospinal fluid (CSF) is called
    • A. 

      Specific gravity

    • B. 

      Mass

    • C. 

      Baricity

    • D. 

      Absolute density

    • E. 

      None of above

  • 25. 
    Select the false statement.
    • A. 

      If a Magill forceps is used for nasotracheal intubation, the right nares is preferable of the nasotracheal tube.

    • B. 

      Extension of the neck can convert an endotracheal intubation to an endobronchial intubation.

    • C. 

      Bucking signifies the return of coughing reflex.

    • D. 

      Postintubation pharyngitis is more likely to occur in females.

    • E. 

      Stenosis becomes symptomatic when the adult tracheal lumen is reduced to less than 5 mm.

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