Pathophysiology Exam 2 Practice Quiz

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Pathophysiology Exam 2 Practice Quiz

Pulmonary obstructive and restrictive diseases


Questions and Answers
  • 1. 
    The steep portion of the oxyhemoglobin dissociation curve represents
    • A. 

      The binding of oxygen by hemoglobin in the lungs

    • B. 

      A left shift, which indicates abnormal hemoglobin

    • C. 

      The release of oxygen from hemoglobin into tissue capillaries

    • D. 

      Acute acidosis

  • 2. 
    Which involves the transfer of gases between air-filled spaces in the lungs and blood?
    • A. 

      Respiration

    • B. 

      Ventilation

    • C. 

      Diffusion

    • D. 

      Perfusion

  • 3. 
    The conducting airways span from
    • A. 

      The oropharynx to the alveoli

    • B. 

      The nasopharynx to the bronchioles

    • C. 

      The nasopharynx to the alveoli

    • D. 

      The oropharynx to the bronchioles

  • 4. 
    PO2 refers to
    • A. 

      The oxygen bound to hemoglobin in the blood

    • B. 

      The oxygen in a dissolved state in the plasma

    • C. 

      The oxygen in bicarbonate

    • D. 

      The oxygen bound to carbon in CO2

  • 5. 
    ___ refers to how stiff the lungs are.
    • A. 

      Elasticity

    • B. 

      Recoil

    • C. 

      Compliance

    • D. 

      Fibrisis

  • 6. 
    In a "normal" patient,the percentage of air left behind in dead spaces after expiration is __ %.
    • A. 

      70

    • B. 

      50

    • C. 

      30

    • D. 

      10

  • 7. 
    A low V/Q ratio could possibly indicate:
    • A. 

      A restrictive disease

    • B. 

      An obstructive disease

    • C. 

      Interstitial lung disease

    • D. 

      Asthma

  • 8. 
    Which means there is normal perfusion and little or no ventilation?
    • A. 

      Dead space unit

    • B. 

      Silent unit

    • C. 

      Shunt

    • D. 

      Obstructive lung disease

  • 9. 
    During a fever, more oxygen is
    • A. 

      Dissolved in the plasma

    • B. 

      Bound to hemoglobin

    • C. 

      Made available to tissues

    • D. 

      Exhaled

  • 10. 
    The most carbon dioxide in the body is transported in the blood as
    • A. 

      CO2 dissolved in plasma

    • B. 

      Carbaminohemoglobin

    • C. 

      Bicarbonate

    • D. 

      Carbon monoxide

  • 11. 
    Which diseases would have normal FVC and FEV1?
    • A. 

      COPD

    • B. 

      Pneumoconioses

    • C. 

      Asthma

    • D. 

      Sarcoidosis

  • 12. 
    ___ provides the gas exchange function.
    • A. 

      Pulmonary circulation

    • B. 

      Bronchial circulation

    • C. 

      The superior vena cava

    • D. 

      The aorta

  • 13. 
    Normal pulmonary blood pressure is
    • A. 

      120/80

    • B. 

      100/60

    • C. 

      75/45

    • D. 

      50/20

    • E. 

      25/10

  • 14. 
    ___ provides oxygenated blood from systemic curculation to meet the lung's metabolic needs.
    • A. 

      Pulmonary circulation

    • B. 

      Bronchial circulation

    • C. 

      The superior vena cava

    • D. 

      The aorta

  • 15. 
    Which is not a morphologic pulmonary assessment tool?
    • A. 

      Radiology

    • B. 

      Biopsy

    • C. 

      Blood gas analysis

    • D. 

      Bronchoscopy

  • 16. 
    Which of these measures of ventilation involve breathing at rest?
    • A. 

      Expiratory reserve volume

    • B. 

      Residual volume

    • C. 

      Forced vital capacity

    • D. 

      Inspiratory reserve volume

  • 17. 
    Which would decrease diffusion capacity?
    • A. 

      COPD

    • B. 

      Asthma

    • C. 

      Thinning of the aveolocapillary membrane

    • D. 

      Loss of alveoli

  • 18. 
    Which of the following are bronchospastic triggers of asthma?
    • A. 

      GERD

    • B. 

      Dust mites

    • C. 

      Cold air

    • D. 

      Viruses

    • E. 

      Pollen

  • 19. 
    Normal SaO2 is
    • A. 

      35-45 mmHg

    • B. 

      80-100 mmHg

    • C. 

      97%

    • D. 

      7.35-7.45

    • E. 

      22 - 26 mEq/L

  • 20. 
    Pleural effusion refers to
    • A. 

      Fluid collected in the lungs

    • B. 

      Fluid collected in the pleural space

    • C. 

      Fluid collected in a fistula in the pleural space

    • D. 

      Fluid collected in the pulmonary circulation

  • 21. 
    Which does not have a preexisting pulmonary disease?
    • A. 

      Secondary pneumothorax

    • B. 

      Primary pneumothorax

    • C. 

      Cor pulmonale

    • D. 

      ARDS

  • 22. 
    This may be hereditary or acquired and is caused by airway obstruction, lung compression, or loss of surfactant.
    • A. 

      Bronchiectasis

    • B. 

      Pneumoconioses

    • C. 

      Atelectasis

    • D. 

      Spontaneous pneumothorax

  • 23. 
    Bronchoconstriction
    • A. 

      Takes place in the larger airways

    • B. 

      Takes place in the smaller airways

    • C. 

      Involves the parasympathetic nervous system

    • D. 

      Involves the sympathetic nervous system

    • E. 

      Involves histamine

  • 24. 
    Which of the following is not an obstructive pulmonary disease?
    • A. 

      Pneumoconioses

    • B. 

      Sarcoidosis

    • C. 

      Bronchiectasis

    • D. 

      Cystic fibrosis

    • E. 

      Chronic bronchitis

  • 25. 
    According to the hygiene hypothesis, asthma
    • A. 

      Results from over production of TH1 cells since Th2 cells were not made in response to childhood illness

    • B. 

      Is caused by IgM antibodies responding to harmless substances instead of microbes

    • C. 

      Results from overproduction of TH2 cells since TH1 cells weren't produced to fight the microbes of childhood illness

    • D. 

      Is caused by IgE antibodies responding to harmless substances instead of to helminths

    • E. 

      Is caused by an overabundance of IgE, T1 cells, and IgG

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