Apii Final - Q. 1-95

95 Questions | Total Attempts: 69

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Apii Final - Q. 1-95

Bob Beregowitz


Questions and Answers
  • 1. 
    Boyle's law states that gas volume is
    • A. 

      Directly proportional to pressure.

    • B. 

      Directly proportional to temperature.

    • C. 

      Inversely proportional to pressure.

    • D. 

      Inversely proportional to temperature.

    • E. 

      Both directly proportional to pressure and directly proportional to temperature.

  • 2. 
    Pulmonary ventilation refers to the
    • A. 

      Movement of air into and out of the lungs.

    • B. 

      Movement of dissolved gases from the alveoli to the blood.

    • C. 

      Movement of dissolved gases from the blood to the interstitial space.

    • D. 

      Movement of dissolved gases from the interstitial space to the cells.

    • E. 

      Utilization of oxygen.

  • 3. 
    The function of pulmonary ventilation is to
    • A. 

      Remove carbon dioxide from the blood.

    • B. 

      Supply oxygen to the blood.

    • C. 

      Maintain adequate alveolar ventilation.

    • D. 

      Remove air from dead air space.

    • E. 

      Prevent gas exchange in the bronchioles.

  • 4. 
    The unit of measurement for pressure preferred by many respiratory therapists is
    • A. 

      Mm Hg.

    • B. 

      Torr.

    • C. 

      Cm H2O.

    • D. 

      All of the above

    • E. 

      None of the above

  • 5. 
    Which of the following is greater?
    • A. 

      The partial pressure of oxygen in atmospheric air

    • B. 

      The partial pressure of oxygen in the alveoli

  • 6. 
    Boyle's Law of Gases states that
    • A. 

      The pressure and volume of a gas are equal.

    • B. 

      As the temperature goes up, the pressure goes up.

    • C. 

      The total gas pressure is equal to the sum of the partial pressures.

    • D. 

      The concentration of dissolved gas is proportional to its partial pressure.

    • E. 

      If the volume goes up, the pressure goes down.

  • 7. 
    Use Figure 20-2 to answer the following questions: Which muscle(s) produce(s) the movement labeled "1"?
    • A. 

      Rectus abdominis

    • B. 

      Internal intercostals

    • C. 

      External intercostals

    • D. 

      Diaphragm

    • E. 

      Both rectus abdominis and external intercostals

  • 8. 
    Use Figure 20-2 to answer the following questions: What is the relationship between the pressures at label "3
    • A. 

      P outside = P inside

    • B. 

      P outside > P inside

    • C. 

      P outside < P inside

    • D. 

      P outside + P inside

    • E. 

      P outside - P inside

  • 9. 
    Use Figure 20-2 to answer the following questions: What pressure will be present in the space labeled "5"?
    • A. 

      Alveolar pressure

    • B. 

      Intrapulmonary pressure

    • C. 

      Subalveolar pressure

    • D. 

      Subatmospheric pressure

    • E. 

      Atmospheric pressure

  • 10. 
    Use Figure 20-2 to answer the following questions: What is the relationship between the pressures at label "8"?
    • A. 

      P outside = P inside

    • B. 

      P outside > P inside

    • C. 

      P outside < P inside

    • D. 

      P outside + P inside

    • E. 

      P outside - P inside

  • 11. 
    Use Figure 20-2 to answer the following questions: Which muscle(s) contract(s) to cause the movement indicated by the arrows labeled "6" and "7"?
    • A. 

      Rectus abdominis

    • B. 

      Internal intercostals

    • C. 

      External intercostals

    • D. 

      Diaphragm

    • E. 

      Both rectus abdominis and internal intercostals

  • 12. 
    Air moves out of the lungs when the pressure inside the lungs is
    • A. 

      Air moves out of the lungs when the pressure inside the lungs is

    • B. 

      Greater than the pressure in the atmosphere.

    • C. 

      Equal to the pressure in the atmosphere.

    • D. 

      Greater than intraalveolar pressure.

    • E. 

      Less than intrapulmonic pressure.

  • 13. 
    When there is no air movement, the relationship between the intrapulmonary and atmospheric pressure is that
    • A. 

      They are equal.

    • B. 

      Intrapulmonary pressure is greater than atmospheric.

    • C. 

      Atmospheric pressure is less than intrapulmonary.

    • D. 

      Atmospheric pressure is more than intrapulmonary.

    • E. 

      Intrapulmonary pressure is less than atmospheric.

  • 14. 
    Which of the following muscles might be recruited to increase inspired volume?
    • A. 

      Sternocleidomastoid

    • B. 

      Pectoralis minor

    • C. 

      Scalenes

    • D. 

      Serratus anterior

    • E. 

      All of the above

  • 15. 
    Expiratory movements are produced by contraction of the ________ muscle(s).
    • A. 

      Scalene

    • B. 

      Diaphragm

    • C. 

      Internal intercostal

    • D. 

      External intercostal

    • E. 

      Serratus anterior

  • 16. 
    When the diaphragm and external intercostal muscles contract,
    • A. 

      The volume of the thorax increases.

    • B. 

      The volume of the thorax decreases.

    • C. 

      The volume of the lungs decreases.

    • D. 

      The lungs shrink.

    • E. 

      Expiration occurs.

  • 17. 
    Which of these descriptions best matches the term external intercostal?
    • A. 

      Accessory muscle of expiration

    • B. 

      Accessory muscle of inspiration

    • C. 

      Primary muscle of inspiration

    • D. 

      Contraction increases airway resistance

    • E. 

      Affects lung compliance

  • 18. 
    ________ is the amount of air that moves into the respiratory system during a single respiratory cycle under resting conditions.
    • A. 

      Residual volume

    • B. 

      Expiratory reserve volume

    • C. 

      Inspiratory reserve volume

    • D. 

      Tidal volume

    • E. 

      Inspiratory capacity

  • 19. 
    ________ is the amount of air that you can inhale above the resting tidal volume.
    • A. 

      Residual inhaled volume

    • B. 

      Expiratory reserve volume

    • C. 

      Inspiratory reserve volume

    • D. 

      Enhanced tidal volume

    • E. 

      Inspiratory capacity

  • 20. 
    In quiet breathing,
    • A. 

      Inspiration and expiration involve muscular contractions.

    • B. 

      Inspiration is passive and expiration involves muscular contractions.

    • C. 

      Inspiration involves muscular contractions and expiration is passive.

    • D. 

      Inspiration and expiration are both passive.

    • E. 

      None of the above

  • 21. 
    If a patient being tested inhales as deeply as possible and then exhales as much as possible, the volume of air expelled would be the patient's
    • A. 

      Tidal volume.

    • B. 

      Inspiratory reserve volume

    • C. 

      Expiratory reserve volume

    • D. 

      Reserve volume.

    • E. 

      Vital capacity.

  • 22. 
    Alveolar ventilation refers to the
    • A. 

      Movement of air into and out of the lungs.

    • B. 

      Amount of air reaching the alveoli each minute.

    • C. 

      Movement of dissolved gases from the alveoli to the blood.

    • D. 

      Movement of dissolved gases from the blood to the alveoli.

    • E. 

      Utilization of oxygen by alveolar cells to support metabolism.

  • 23. 
    Increasing the alveolar ventilation rate will
    • A. 

      Decrease the partial pressure of carbon dioxide in the alveoli.

    • B. 

      Decrease the rate of oxygen diffusion from the alveoli to the blood.

    • C. 

      Increase the partial pressure of carbon dioxide in the alveoli.

    • D. 

      Decrease the rate of carbon dioxide diffusion from the blood to the alveoli.

    • E. 

      Hardly affect either the partial pressure or diffusion of gases.

  • 24. 
    ________ equals the respiratory rate × (tidal volume - anatomic dead space).
    • A. 

      Vital capacity

    • B. 

      Respiratory minute volume

    • C. 

      Pulmonary ventilation rate

    • D. 

      Alveolar ventilation rate

    • E. 

      External respiration rate

  • 25. 
    Which of the following can be calculated if the tidal volume and respiratory rate are known?
    • A. 

      Respiratory minute volume

    • B. 

      Inspiratory reserve volume

    • C. 

      Expiratory reserve volume

    • D. 

      Anatomical dead space

    • E. 

      Forced vital capacity

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