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How long does it take a normal individual to exhale 100% of the FVC?


A) 2 to 4 seconds
B) 4 to 6 seconds
C) 1 to 2 seconds
D) 6 to 8 seconds

E) B) and C)
F) None of the above

Correct Answer

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Which of the following conditions is associated with increased FRC and RV?


A) Obstructive
B) Restrictive
C) Mixed
D) Idiopathic

E) A) and B)
F) A) and C)

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Which of the following are characteristics of PEF? I.It reflects large airway function. II.PEF in normal adults may exceed 10 L/sec. III.It is an effort-dependent test. IV.PEF is useful in assessing gross changes in airway function and evaluating the response to bronchodilator drugs.


A) III, IV
B) I, II, III
C) I, II, IV
D) I, II, III, IV

E) C) and D)
F) B) and D)

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Lung function is considered normal when values are within what range of predicted?


A) 80% to 120%
B) 100% to 120%
C) 60% to 80%
D) 80% to 90%

E) C) and D)
F) B) and C)

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Which of the following mechanisms primarily explains the increased WOB in obstructive diseases?


A) Loss of elastance
B) Increased airway resistance
C) Loss of compliance
D) Increased airflow

E) B) and D)
F) B) and C)

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Which of the following tests is considered more sensitive for detection of small airway obstruction than FEF25-75% or FEV1?


A) PEF
B) The volume of isoflow (VisoV.)
C) FEV1/FVC
D) Dynamic compliance

E) A) and B)
F) None of the above

Correct Answer

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The maximum voluntary ventilation reflects the overall integrated function of which of the following parameters? I.Ventilatory apparatus II.Muscle strength III.Endurance IV.Airway diameter, lung compliance, and neural control mechanisms


A) III, IV
B) I, II, III
C) I, II, IV
D) I, II, III, IV

E) C) and D)
F) A) and B)

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An abnormally increased FRC is typically associated with which of the following conditions?


A) Hyperinflation
B) Increased elastic recoil
C) Increased compliance
D) Pulmonary fibrosis

E) A) and B)
F) None of the above

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Which of the following conditions is classified as a restrictive pulmonary disease with normal compliance?


A) ARDS
B) Pulmonary fibrosis
C) Neuromuscular disease
D) Pneumonia

E) A) and B)
F) All of the above

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Which of the following characteristics influence pulmonary function? I.Age II.Gender III.Height IV.Diet


A) I, III
B) II, III, IV
C) I, II, III
D) II, IV

E) B) and D)
F) C) and D)

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Which of the following statements are true of the FEF25-75%? I.It is more sensitive to flow coming from medium to small airways. II.Normal FEF25-75% for a healthy young adult is approximately 4 to 5 L/sec. III.It does not have more variance than other measures of flow. IV.Because the FEF25-75% is so variable, its validity is questionable.


A) III, IV
B) I, II, III
C) I, II, IV
D) I, II, III, IV

E) A) and C)
F) B) and D)

Correct Answer

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Which of the following methods allow indirect measurement of RV and capacities containing it? I.Helium dilution II.End-tidal CO2 III.Nitrogen washout IV.Body plethysmography


A) I, III, IV
B) III, IV
C) I, II, III, IV
D) II, IV

E) B) and C)
F) All of the above

Correct Answer

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What is the normal RV/TLC value in healthy adults up to age 49?


A) 5% to 10%
B) 10% to 15%
C) 20% to 25%
D) 30% to 35%

E) A) and D)
F) A) and C)

Correct Answer

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Which percentage of the total airway resistance depends on small airways less than 2 mm?


A) 10%
B) 20%
C) 30%
D) 40%

E) None of the above
F) A) and B)

Correct Answer

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