Canty Test1.txt

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Canty Test1.txt
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2012-10-21 19:01:58
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Q5 Canty Exam1
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Q5 Canty Exam1
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  1. 1. The gas exchange portion of the respiratory system consists of the:
    A. Larynx and trachea
    B. Alveolar structures and pulmonary capillaries
    C. Bronchi and bronchioles
    D. Bronchioles and alveoli
    B. Alveolar structures and pulmonary capillaries
    (this multiple choice question has been scrambled)
  2. 2. The term vital capacity refers to: 4600, total lung = 5800
    a. The amount of air taken in and exhaled during normal respiration
    b. Maximal amount of air that can be taken in and exhaled with forceful
    expiration
    c. The amount of air that remains in the lung after forceful expiration
    d. The amount of air that can be forcefully exhaled after normal inspiration
    b. Maximal amount of air that can be taken in and exhaled with forceful
  3. 3. Most of the carbon dioxide that is produced as a result of tissue metabolism is carried in the blood in the form of:
    A. Dissolved carbon dioxide
    B. Carboxihemoglobin
    C. Bicarbonate
    D. oxyhemoglobin
    C. Bicarbonate
    (this multiple choice question has been scrambled)
  4. 4. The amount of air remaining in the lungs after a maximal exhalation is called the:
    A. Forced expiratory volume
    B. Expiratory reserve volume
    C. Residual volume
    D. Tidal volume
    C. Residual volume
    (this multiple choice question has been scrambled)
  5. 5. Surfactant is a phospholipid that reduces
    A. Lung compliance
    B. Alveolar surface tension
    C. Pulmonary capillary fragility
    D. Pulmonary vascular capacity
    B. Alveolar surface tension
    (this multiple choice question has been scrambled)
  6. 6. The central chemoreceptors for respiratory control are
    A. Responsive primarily to hypoxemia
    B. Located in the carotid artery
    C. Responsive primarily to changes in CO2
    D. Responsive to acute and chronic hypercapnia
    C. Responsive primarily to changes in CO2
    (this multiple choice question has been scrambled)
  7. 7. Which of the following statements about the oxyhemoglobin dissociation curve is true?
    A. The curve shifts to the left with hypercapnia
    B. An increase in PaO2 causes a linear increase in SaO2
    C. Increasing PaO2 above 90 mm Hg greatly improves saturation.
    D. The curve shifts to the right with hypercapnia
    D. The curve shifts to the right with hypercapnia
    (this multiple choice question has been scrambled)
  8. 8. Cor Pulmonale
    a. Occurs in response to long-standing pulmonary hypertension
    b. Is right sided heart failure
    c. Is precipitated by polycythemia
    d. A and B
    e. B and C
    • a. Occurs in response to long-standing pulmonary hypertension
    • b. Is right sided heart failure
    • d. A and B
  9. 9. Given the following muscles, which of the following are involved with increasing the volume of the thorax? 1. Diaphragm 2. External intercostals 3. Internal intercostals 4. Rectus abdominus
    A. 2, 4
    B. 1, 3
    C. 3, 4
    D. 2, 3
    E. 1, 2
    E. 1, 2
    (this multiple choice question has been scrambled)
  10. 10.During expiration, the intrapulmonary pressure must
    A. Equal to atmospheric pressure
    B. Greater than atmospheric pressure
    C. Less than atmospheric pressure
    B. Greater than atmospheric pressure
    (this multiple choice question has been scrambled)
  11. 11.The major reason for air trapping in emphysema is
    A. Bronchocontrictionasthma
    B. Loss of lung elasticity emphysema
    C. Excessive mucus secretion bronchitis
    D. Bronchial edema
    B. Loss of lung elasticity emphysema
    (this multiple choice question has been scrambled)
  12. 12.Introduction of air into the pleural cavity is called
    A. Pneumothorax
    B. Pneumonia
    C. Emphysema
    D. Respiratory distress syndrome
    E. Bronchitis
    A. Pneumothorax
    (this multiple choice question has been scrambled)
  13. 13.All of the following are part of the pathophysiology of emphysema except:
    A. dilation of structures distal to the terminal bronchioles
    B. excessive production of mucus or empyema
    C. loss of lung elasticity
    D. destruction of alveoli and capillary beds
    B. excessive production of mucus or empyema
    (this multiple choice question has been scrambled)
  14. 14.Which of the following would increase the rate of gas exchange across the respiratory membrane?
    A. decrease the thickness of the respiratory membrane
    B. increase the pressure gradients of gases moving across the respiratorymembrane
    C. all of these would decrease the rate of gas exchange
    D. increase the surface area of the respiratory membrane
    E. all of these would increase the rate of gas exchange
    C. all of these would decrease the rate of gas exchange
    (this multiple choice question has been scrambled)
  15. 15.Oxygen diffusion from the alveolus to the alveolar capillary occurs because
    A. The PO2 is higher in the capillary than in the alveolus
    B. The PO2 is less in the atmosphere than in the arterial blood
    C. The PO2 is higher in the tissues than in the alveoli
    D. The PO2 is less in the capillary than in the alveolus
    D. The PO2 is less in the capillary than in the alveolus
    (this multiple choice question has been scrambled)
  16. 16.Which of the following statements is the best description of a pneumothorax?
    A. Accumulation of fluid in the pleural cavity
    B. A pathologic lesion of the lung
    C. Positive intrapleural pressure
    D. Air within the pleural cavity
    D. Air within the pleural cavity
    (this multiple choice question has been scrambled)
  17. 17.The usual course of pneumococcal lobar pneumonia terminates with:
    A. Complete resolution of the pulmonary inflammation
    B. Abscess formation and empyema
    C. Diffuse pulmonary fibrosis
    D. Organization of the inflammatory exudates
    A. Complete resolution of the pulmonary inflammation
    (this multiple choice question has been scrambled)
  18. 18.Inadequately treated empyema (pus in membrane) may result in which of the following conditions?
    A. Fibrothorax
    B. Chylothorax
    C. Hemothorax
    D. Hydrothorax
    A. Fibrothorax
    (this multiple choice question has been scrambled)
  19. 19.Which of the following conditions could cause compression pneumothorax?
    a. Pleural effusion
    b. Neoplasm
    c. Chronic bronchitis
    d. A and B
    e. All of the above
    • a. Pleural effusion
    • b. Neoplasm
    • d. A and B
  20. 20.Atelectasis refers to:
    A. Inflammation of the pleura
    B. Collapse of an entire lung
    C. Incomplete expansion of a portion of the lung
    D. Fluid in the pleural space
    C. Incomplete expansion of a portion of the lung
    (this multiple choice question has been scrambled)
  21. 21.The characteristic X-ray findings in tuberculosis include
    A. Bibasilar infiltrates
    B. Ghon tubercles
    C. Tracheal deviation
    D. A diffuse white out
    B. Ghon tubercles
    (this multiple choice question has been scrambled)
  22. 22.Extrinsic asthma is associated with
    A. Decreased functional residual capacity
    B. Irreversible airway obstruction
    C. IgE-mediated airway inflammation
    D. Unknown precipitating factors
    C. IgE-mediated airway inflammation
    (this multiple choice question has been scrambled)
  23. 23.Which of the following would be indicative of a left tension pneumothorax?
    A. Deviation of the mediastinum to the left
    B. Absent breath sounds on the right
    C. Course crackles throughout the left chest
    D. Tracheal deviation to the right
    D. Tracheal deviation to the right
    (this multiple choice question has been scrambled)
  24. 24.Pulmonary emboli usually: 1. Obstruct blood supply to the lung parenchyma 2. Have origins from thrombi in the legs 3. Occlude pulmonary vein branches 4.
    occlude pulmonary artery branches
    A. 1, 2, 3, 4
    B. 1, 2, 4
    C. 1, 2, 3
    D. 2, 4
    E. 2, 3
    B. 1, 2, 4
    (this multiple choice question has been scrambled)
  25. 25.A shift to the right in the oxyhemoglobin dissociation curve
    A. Prevents oxygen release at the cellular level
    B. Causes oxygen to bind tighter to hemoglobin
    C. Improves oxygen release at the cellular level
    D. Both a and b are correct
    e. None of the above are correct
    C. Improves oxygen release at the cellular level
    (this multiple choice question has been scrambled)
  26. 26.Which statement is true concerning cystic fibrosis?
    A. It is difficult to detect carriers through genetic testing
    B. It is a disease that affects the lungs only
    C. Infectious complications are not common
    D. Defect results in overproduction of viscous mucus
    e. All of the above are true
    D. Defect results in overproduction of viscous mucus
    (this multiple choice question has been scrambled)
  27. 27.Which of the following shows a correct sequence in acute respiratory distress syndrome?
    A. hyaline membrane formation and fibrosis, causing pulmonary edema
    B. increased alveolar-capillary permeability, causing decreased surfactant production
    C. alveolar-capillary membrane injury, causing decreased surface tension and alveolar collapse
    D. impaired alveolar compliance and recoil, causing decreased surfactant production
    B. increased alveolar-capillary permeability, causing decreased surfactant production
    (this multiple choice question has been scrambled)
  28. 28.The most common cause of pneumonia in children is:
    A. Respiratory synctial virus
    B. Staphylococcus pneumonia
    C. Haemophilus influenza
    D. Streptococcus pneumonia
    D. Streptococcus pneumonia
    (this multiple choice question has been scrambled)
  29. 29.Children with cystic fibrosis demonstrate elevated levels of which of the following compounds, in both sweat and salivary gland secretions?
    A. Sodium chloride
    B. Magnesium
    C. Potassium
    D. Carbonic acid
    A. Sodium chloride
    (this multiple choice question has been scrambled)
  30. 30.A patient with a pulmonary embolus could be described as having
    A. Perfusion without ventilation
    B. Ventilation without perfusion
    C. Physiologic shunt
    D. Hypercapnia
    B. Ventilation without perfusion
    (this multiple choice question has been scrambled)
  31. 31.The normal PO2 and PCO2 of arterial blood are respectively
    A. 80-100 mmHg, 35-45 mmHg
    B. 35-45 mmHg, 80-100 mmHg
    C. 60-100 mmHg, 20-35 mmHg
    D. 60-80 mmHg, 30-40 mmHg
    A. 80-100 mmHg, 35-45 mmHg
    (this multiple choice question has been scrambled)
  32. 32.Administering high concentrations of oxygen to a person with chronic hypoxia can be harmful because:
    A. high concentrations are irritating to mucous membranes
    B. high concentrations of oxygen can cause bronchospasm
    C. in high concentrations, the viscosity of oxygen increases airway resistance
    D. high concentrations suppress the oxygen chemoreceptors which provide the main stimulus for ventilation
    D. high concentrations suppress the oxygen chemoreceptors which provide the main stimulus for ventilation
    (this multiple choice question has been scrambled)
  33. 33.Given the following lung volumes: Tidal volume = 500 mL, Residual volume = 1000 mL, Inspiratory reserve = 2500 mL, Expiratory reserve = 1000 mL,
    air space = 1000 mL The vital capacity would be:
    A. 3500 mL
    B. 4000 mL
    C. 6000 mL
    D. 5000 mL
    E. 3000 mL
    B. 4000 mL
    (this multiple choice question has been scrambled)
  34. 34.The pneumotaxic center
    A. Inhibits the apneustic center
    B. Stimulates the inspiratory center
    C. Is located in the medulla oblongata
    d. All of the above
    A. Inhibits the apneustic center
    (this multiple choice question has been scrambled)
  35. 35.Treatment for asthma consists of bronchodilator therapy with theophylline and beta agonists. A common side effect of these agents is:
    A. Tachycardia
    B. Depression
    C. Platelet dysfunction
    D. Hypotension
    A. Tachycardia
    (this multiple choice question has been scrambled)
  36. 36.The most common cause of bronchiolitis in children is:
    A. Respiratory syncytial virus
    B. Staphylococcus aureus
    C. Haemophilus influenza
    D. Streptococcus pneumonia
    A. Respiratory syncytial virus
    (this multiple choice question has been scrambled)
  37. 37.During one of the pathologic stages of pneumonia, the number of red blood cells in the exudate decreases and they are replaced by increasing numbers of
    neutrophils which infiltrate the alveoli. This stage is referred to as:
    A. Resolution
    B. Gray hepatization
    C. Hyperemia
    D. Red hepatization
    B. Gray hepatization
    (this multiple choice question has been scrambled)
  38. 38.Signs of respiratory distress and impending respiratory failure in the infant includes all of the following except:
    A. Heightened level of consciousness
    B. Heart rate of 150 beats per minute or greater
    C. Fatigue
    D. Retractions of the supraclavicular area, sternum, and intercostals spaces
    E. Cyanosis
    A. Heightened level of consciousness
    (this multiple choice question has been scrambled)
  39. 39.A congenital deformity in which the lower end of the sternum is attached to the thoracic spine by fibromuscular bands giving the lower sternal area a depressed appearance is called:
    A. Kyphoscoliosis
    B. Ankylosing spondylitis
    C. Pectus excavatum
    D. Pickwician syndrome
    C. Pectus excavatum
    (this multiple choice question has been scrambled)
  40. 40.Pulmonary fibrosis is a common pathophysiological feature in which of the following diseases:
    a. Silicosis
    b. Asbestosis
    c. Guillain Barre
    d. A and B
    e. All of the above
    • a. Silicosis
    • b. Asbestosis
    • d. A and B
  41. 41.In head injury, vasodilation of blood vessels can promote more swelling and a resultant increase in intracranial pressure. The stimulus for vasodilation of
    blood vessels is due to:
    a. Hypoxia
    b. Hypercarbia
    c. Polycythemia
    d. A and B
    e. All of the above
    • a. Hypoxiab.
    • b.Hypercarbia
    • d. A and B
  42. 42.All of the following are manifestations of croup except:
    A. Retractions of the chest wall
    B. Barking cough
    C. Nasal flaring
    D. Expiratory stridor
    D. Expiratory stridor
    (this multiple choice question has been scrambled)
  43. 43.Which of the following conditions would be associated with bilateral infiltrates on X-ray, respiratory distress, crackles upon auscultation, and abnormal blood gases?
    A. Chronic bronchitis
    B. Asthma
    C. Emphysema
    D. ARDS
    D. ARDS
    (this multiple choice question has been scrambled)
  44. 44.Tim, age 4 years, aspirated a small piece of hot dog. Upon auscultation of his lungs, you would most likely expect decreased or absent breath sounds in which
    of the following?
    A. Aspiration would not cause decreased breath sounds
    B. Over his left lung
    C. Over either of the lungs
    D. Over his right lung
    D. Over his right lung
    (this multiple choice question has been scrambled)
  45. 45.Which of the following is true regarding the chloride shift?
    A. It occurs when chloride ions replace bicarbonate ions within erythrocytes
    B. It occurs primarily in pulmonary capillaries
    C. It decreases the formation of bicarbonate ions
    d. All of the above are correct
    A. It occurs when chloride ions replace bicarbonate ions within erythrocytes
    (this multiple choice question has been scrambled)
  46. 46.Which of the following conditions could cause compression atelectasis?
    a. Pleural effusion
    b. Neoplasm
    c. Chronic bronchitis
    d. A and B only
    e. All of the above are correct
    • a. Pleural effusion
    • b. Neoplasm
    • d. A and B only
  47. 47.Which of the following is true regarding the occurrence of cor pulmonale and polycythemia?
    A. They are not life-threatening conditions
    B. The occur early in the course of disease in patients with emphysema
    C. The main stimulus for the development of these conditions is hypoxia
    D. A and B only
    e. All of the above are correct
    C. The main stimulus for the development of these conditions is hypoxia
    (this multiple choice question has been scrambled)
  48. 48.Which of the following is the most important factor in gas exchange?
    A. Total red blood cell count
    B. Length of the diffusion path
    C. Partial pressure of the gases involved
    D. Surface area for exchange of gases
    C. Partial pressure of the gases involved
    (this multiple choice question has been scrambled)
  49. 49.Which of the following compounds is present in the sweat and salivary secretions of patients with cystic fibrosis?
    A. Magnesium
    B. Sodium chloride
    C. Carbonic acid
    D. Potassium
    B. Sodium chloride
    (this multiple choice question has been scrambled)
  50. 50.Emphysema differs from chronic bronchitis in which of the following ways?
    A. emphysema obstruction results from destruction of alveolar walls and capillary beds
    B. there are no visible differences between the two conditions
    C. chronic bronchitis obstruction results from a loss in lung elasticity
    D. emphysema obstruction results from mucus production and inflammation
    A. emphysema obstruction results from destruction of alveolar walls and capillary beds
    (this multiple choice question has been scrambled)
  51. 51.Which of the following is the volume of air that can be forcefully expired after expiration of a normal tidal volume?
    A. Total lung capacity
    B. Forced vital capcity
    C. Residual volume
    D. Expiratory reserve volume
    D. Expiratory reserve volume
    (this multiple choice question has been scrambled)
  52. 52.Which of the following are factors that can influence ventilation?
    a. Proprioceptors in joints and muscles
    b. Emotions
    c. Accumulation of CO2
    d. Voluntary control from higher brain centers
    e. All of the above are correct
    • a. Proprioceptors in joints and muscles
    • b. Emotions
    • c. Accumulation of CO2
    • d. Voluntary control from higher brain centers
    • e. All of the above are correct
  53. 53.Which of the following conditions can result from fractured ribs or sternum?
    A. Kyphoscoliosis
    B. Pickwickian syndrome
    C. Pectus excavatum
    D. Flail chest
    D. Flail chest
    (this multiple choice question has been scrambled)
  54. 54.What is the term used to describe the increased affinity of CO2 for hemoglobin when O2 is dissociated from hemoglobin?
    A. Saturation equivalent
    B. Haldane effect
    C. Hering-Breuer reflex
    D. Chloride shift
    B. Haldane effect
    (this multiple choice question has been scrambled)
  55. 55.Which of the following is associated with left tension pneumothorax?
    A. Tracheal deviation to the left
    B. Absent breath sounds on the left side
    C. Deviation of the mediastinum to the right
    D. Presence of ronchi
    C. Deviation of the mediastinum to the right
    (this multiple choice question has been scrambled)
  56. 56.All of the following muscles would decrease the volume of the thorax EXCEPT?
    A. Internal intercostals
    B. A and B are exceptions
    C. Diaphragm
    D. Rectus abdominus
    C. Diaphragm
    (this multiple choice question has been scrambled)
  57. 57.Which of the following are normal arterial blood gases?
    A. PO2 60 mmHg, PCO2 45 mmHg
    B. PO2 70 mmHg, PCO2 60 mmHg
    C. PO2 80 mmHg, PCO2 50 mmHg
    D. PO2 90 mmHg, PCO2 40 mmHg
    D. PO2 90 mmHg, PCO2 40 mmHg
    (this multiple choice question has been scrambled)
  58. 58.The normal ventilation-perfusion ration is which of the following?
    A. 3:5
    B. 5:2
    C. 4:5
    D. 7:8
    C. 4:5
    (this multiple choice question has been scrambled)
  59. 59.Oxygen is mostly transported in the blood in which of the following ways?
    A. Dissolved in plasma
    B. Bound to the heme portion of hemoglobin
    C. Within bicarbonate ions
    D. Bound to blood proteins
    B. Bound to the heme portion of hemoglobin
    (this multiple choice question has been scrambled)
  60. 60.Which of the following statements is true concerning the oxyhemoglobin dissociation curve?
    A. An increase in PO2 causes a linear increase in SaO2
    B. The flat upper portion of the curve reflects a greater ability for O2 to dissociate from hemoglobin
    C. The curve shifts to the right when hypercapnia is present and an increase of C02.
    d. Increasing PO2 above 90 mmHg greatly improves saturation of hemoglobin with O2
    C. The curve shifts to the right when hypercapnia is present and an increase of C02.
    (this multiple choice question has been scrambled)
  61. 61.Which of the following is accurate concerning the pathophysiology of acute respiratory distress syndrome (ARDS)?
    A. increase in surfactant production, which increases surface tension and results in alveolar collapse
    B. increased alveolar-capillary permeability, which causes leakage of proteins and water into alveoli
    C. alveolar-capillary membrane injury, causing decreased surface tension and alveolar collapse
    D. hyaline membrane formation and fibrosis, which causes pulmonary edema
    B. increased alveolar-capillary permeability, which causes leakage of proteins and water into alveoli
    (this multiple choice question has been scrambled)
  62. 62.All of the following are part of the pathophysiology of asthma EXCEPT?
    A. Inflammation of the mucosa lining the airways
    B. Relaxation of smooth muscle that surrounds the airways
    C. Excess secretion of mucus
    D. Bronchoconstriction
    B. Relaxation of smooth muscle that surrounds the airways
    (this multiple choice question has been scrambled)
  63. 63.All of the following are part of the pathophysiology of chronic bronchitis EXCEPT?
    A. Edema of major and small airways
    B. Excess production of mucus
    C. Destruction of alveolar and capillary membranes
    D. Hyperplasia of bronchial structures
    C. Destruction of alveolar and capillary membranes
    (this multiple choice question has been scrambled)
  64. 64.Which of the following percentages of FEV1.0 to FVC would be indicative of COPD?
    A. 70%
    B. 45%
    C. 65%
    D. 80%
    B. 45%
    (this multiple choice question has been scrambled)
  65. 65.Which of the following occurs immediately after the creation of an opening through the thorax into the pleural cavity?
    A. air flows into the pleural cavity through the hole
    B. B and D
    C. air flows out of the pleural cavity through the hole
    D. air neither flows into or out of the hole
    E. the lung protrudes through the hole
    A. air flows into the pleural cavity through the hole
    (this multiple choice question has been scrambled)
  66. 66.Which of the following is true regarding quiet respiration?
    A. The external intercostals muscles contract
    B. The diaphragm moves inferiorly
    C. The thorax and lungs passively recoil due to elaxation of the muscles of inspiration
    D. The abdominal muscles relax
    e. All of the above are correct
    C. The thorax and lungs passively recoil due to elaxation of the muscles of inspiration
    (this multiple choice question has been scrambled)
  67. 67.Which stage of pneumonia is characterized by a decrease in the number of erythrocytes and an increase in the number of neutrophils?
    A. Resolution
    B. Red hepatization
    C. Gray hepatization
    D. Hyperemia
    C. Gray hepatization
    (this multiple choice question has been scrambled)
  68. 68.Which of the following cells secrete surfactant?
    A. Type I alveolar cells
    B. Alveolar macrophages
    C. Type II alveolar cells
    d. All of the above are correct
    C. Type II alveolar cells
    (this multiple choice question has been scrambled)
  69. 69.A positive result from an intradermal injection of the tubercle bacillus is an example of which of the following types of hypersensitivity reaction?
    A. Type I
    B. Type II
    C. Type IV
    D. Type III
    C. Type IV
    (this multiple choice question has been scrambled)
  70. 70.Unsuccessful resolution of empyema is associated with which of the following conditions?
    A. Pulmonary edema
    B. Fibrothorax
    C. Cystic fibrosis
    D. Hydrothorax
    B. Fibrothorax
    (this multiple choice question has been scrambled)
  71. 71.Which of the following would you most commonly expect to find on an X-ray of an individual with pulmonary tuberculosis?
    A. Bilateral white out
    B. Pleural effusion
    C. Tracheal deviation
    D. Ghon's complex
    D. Ghon's complex
    (this multiple choice question has been scrambled)
  72. 72.Why is administration of high concentrations of oxygen harmful to a person with chronic hypoxia?
    A. because high concentrations of oxygen can cause bronchospasm
    B. because high concentrations suppress the oxygen chemoreceptors
    C. because in high concentrations, the viscosity of oxygen increases airway resistance
    D. because high concentrations are irritating to mucous membranes
    B. because high concentrations suppress the oxygen chemoreceptors
    (this multiple choice question has been scrambled)
  73. 73.Which of the following terms best describes the accumulation of purulent material in the pleural cavity?
    A. Hydrothorax
    B. Fibrothorax
    C. Hemothorax
    D. Empyema
    D. Empyema
    (this multiple choice question has been scrambled)
  74. 74.Which of the following microorganisms is the most common cause of epiglottitis in children?
    A. Streptococcus pneumonia
    B. Mycobacterium tuberculosis
    C. Hemophilus influenza
    D. Respiratory syncytial virus (RSV)
    C. Hemophilus influenza
    (this multiple choice question has been scrambled)
  75. 75.All of the following impair function of the mucociliary escalator system EXCEPT?
    A. Hypoxia
    B. Cigarette smoking
    C. Dehydration
    D. Humidified air
    D. Humidified air
    (this multiple choice question has been scrambled)
  76. 76.Which of the following is accurate concerning the diffusion of O2 from the capillary blood into the tissue cell blood?
    A. The concentration of O2 in the tissue cell is higher than in venous blood.
    B. The PO2 is less in the tissue cell than it is in arterial blood
    C. The concentration of CO2 in venous blood is higher than it is in the tissue cell.
    D. The PO2 in the alveolus is higher than it is in venous blood.
    B. The PO2 is less in the tissue cell than it is in arterial blood
    (this multiple choice question has been scrambled)
  77. 77.Which of the following is not one of the four phases of the inflammatory response associated with pneumococcal pneumonia?
    A. Congestion
    B. Atelectasis
    C. Red hepatization
    D. Resolution
    B. Atelectasis
    (this multiple choice question has been scrambled)
  78. 78.The oldest and most widespread of the pneumoconoises is which of the following?
    A. Silicosis
    B. Byssinosis
    C. Black lung disease
    D. Asbestosis
    A. Silicosis
    (this multiple choice question has been scrambled)
  79. 79.Which of the following is/are true regarding the pneumotaxic center?
    a. It inhibits inspiration
    b. It inhibits the apneustic center
    c. It prolongs inspiration
    d. A and B only
    e. B and C only
    • a. It inhibits inspiration
    • b. It inhibits the apneustic center
    • d. A and B only
  80. 80.In the person with COPD, which of the following best describes why pursed-lip breathing improves ventilation?
    a. It increases intraabdominal pressure as a means of facilitating descent of the diaphragm
    b. It increases small airway pressures during expiration as a means of preventing their collapse
    c. It allows more time for gas exchange to occur
    d. A and B only
    e. B and C only
    • b. It increases small airway pressures during expiration as a means of preventing their collapse
    • c. It allows more time for gas exchange to occur
    • e. B and C only
  81. 81.Which of the following is the most common etiology of bronchiolitis in children?
    A. Beta hemolytic streptococcus
    B. Hemophilus influenza
    C. Streptococcus pneumonia
    D. Respiratory syncytial virus (RSV)
    D. Respiratory syncytial virus (RSV)
    (this multiple choice question has been scrambled)
  82. 82.Which of the following describes a chest wound in which the defect acts like a flap valve and permits the entrance of air during inspiration but fails to permit
    its escape during expiration?
    A. Tension pneumothorax
    B. Open pneumothorax
    C. Spontaneous pneumothorax
    D. Closed pneumothorax
    A. Tension pneumothorax
    (this multiple choice question has been scrambled)

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