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A patient has a eucapnic voluntary hyperventilation (EVH) test to evaluate bronchial hyperreactivity.If the subject's FEV1 is 3.3 L and her FVC is 4.0 L,which of the following is the appropriate target ventilation for the test?


A) 50 times the FEV1 for 1 minute
B) 30 times the FEV1 for 6 minutes
C) 2 times the FVC for 6 minutes
D) Cannot be determined without the MVV

Correct Answer

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Which of the following should be withheld for 48 hours before bronchial challenge testing?


A) Theophylline
B) Ξ²\beta -Adrenergic agents
C) Anticholinergic preparations
D) Beverages containing caffeine

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When preparing methacholine dilutions for the doubling protocol from 100 mg of dry powder,which of the following would yield a dilution of 4.0 mg/ml?


A) 3 ml of 16.0 mg/ml
B) 3 ml of 8.0 mg/ml
C) 3 ml of 4.0 mg/ml
D) 3 ml of 2.0 mg/ml

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What is the typical inspiratory gas mixture when performing a eucapnic voluntary hyperventilation study?


A) 5% CO2,21% O2,balance N2
B) 10% CO2,balance O2
C) 5% CO2,balance O2
D) 10% CO2,21% O2,balance N2

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When developing an exercise bronchoprovocation test protocol,which of the following should be included?


A) The patient should be free from respiratory infections for 1 week before the test.
B) The patient should not do vigorous exercise for 4 hours before testing.
C) The exercise time is planned for 15 to 20 minutes.
D) A cycle ergometer is used to apply the work for the exercise.

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B

A subject performing a methacholine challenge test has the following reproducible results: A subject performing a methacholine challenge test has the following reproducible results:   The technologist should do which of the following? A)  Administer the first dose of methacholine. B)  Administer 2.50 mg/ml dose of methacholine. C)  Stop-the test is positive. D)  Administer an inhaled bronchodilator. The technologist should do which of the following?


A) Administer the first dose of methacholine.
B) Administer 2.50 mg/ml dose of methacholine.
C) Stop-the test is positive.
D) Administer an inhaled bronchodilator.

Correct Answer

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What does the acronym PC20 represent?


A) The repeatability has to be 20% when performing a methacholine challenge.
B) The dose that yields a 20% decline in FEV1
C) A 20% decline in specific conductance
D) A 20% increase in specific resistance

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Anticholinergic agents should be withheld for 24 hours.


A) 1 and 2
B) 3 and 4
C) 1 and 3
D) 2 and 4

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Which of the following is a direct bronchoprovocation test?


A) Methacholine
B) Mannitol
C) Adenosine
D) Exercise

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A

A patient presents with a history of cough after playing ice hockey.Spirometry and lung volume results are normal.Which of the following tests is indicated?


A) Diffusing capacity
B) Mannitol
C) Maximum inspiratory pressure
D) Arterial blood gas

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What is the highest concentration of methacholine delivered according to the ATS dose-doubling or dose-quadrupling scheme?


A) 25 mg/ml
B) 16 mg/ml
C) 8 mg/ml
D) 4 mg/ml

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A subject performing a methacholine challenge test has the following reproducible results: A subject performing a methacholine challenge test has the following reproducible results:   The technologist should do which of the following? A)  Repeat methacholine 0.25 mg/ml dose. B)  Administer methacholine 1.0 mg/ml. C)  Give 10 breaths of the next dose. D)  Stop-the test is positive. The technologist should do which of the following?


A) Repeat methacholine 0.25 mg/ml dose.
B) Administer methacholine 1.0 mg/ml.
C) Give 10 breaths of the next dose.
D) Stop-the test is positive.

Correct Answer

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A mannitol challenge is performed with the following results: A mannitol challenge is performed with the following results:   What should the technologist do next? A)  Proceed to the next level. B)  Deliver a bronchodilator. C)  Terminate the test. D)  Repeat the maneuver. What should the technologist do next?


A) Proceed to the next level.
B) Deliver a bronchodilator.
C) Terminate the test.
D) Repeat the maneuver.

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When multiple methods of bronchoprovocation are ordered on the same day,how many hours after an exercise test should elapse before another test is performed?


A) 1
B) 2
C) 3
D) 4

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After 5 minutes of hyperventilation breathing cold air,a subject's FEV1 falls 16% from the pre-test value.The pulmonary function technologist should conclude that:


A) The subject has hyperreactive airways.
B) The air was not cold enough to provoke a response.
C) An additional 5 minutes of hyperventilation is required.
D) Inadequate CO2 was added to the inspired gas.

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An exercise bronchoprovocation test was completed on a 45-year-old male.The FEV1 decreased 18% post-exercise.The technologist should explain that this change is related to:


A) Release of mediators from inflammatory cells
B) A direct response of the airway smooth muscle to exercise
C) An exercise-induced increase in the number of inflammatory cells
D) A decrease in water loss from the airways

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A

A 15-year-old subject performs an exercise challenge test on a treadmill to a heart rate of 180 beats per minute for 5 minutes and has the following reproducible results: A 15-year-old subject performs an exercise challenge test on a treadmill to a heart rate of 180 beats per minute for 5 minutes and has the following reproducible results:   The technologist should do which of the following? A)  The workload was not significant enough to elicit a response. B)  The duration was not significant enough to elicit a response. C)  The results were negative for exercise-induced bronchospasm. D)  The results were positive for exercise-induced bronchospasm. The technologist should do which of the following?


A) The workload was not significant enough to elicit a response.
B) The duration was not significant enough to elicit a response.
C) The results were negative for exercise-induced bronchospasm.
D) The results were positive for exercise-induced bronchospasm.

Correct Answer

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A subject performing a methacholine challenge test has the following repeatable results: A subject performing a methacholine challenge test has the following repeatable results:   The technologist should do which of the following? A)  Repeat methacholine 1.0 mg/ml dose. B)  Administer methacholine 4.0 mg/ml dose. C)  Give 10 breaths of the next dose. D)  Stop-the test is positive. The technologist should do which of the following?


A) Repeat methacholine 1.0 mg/ml dose.
B) Administer methacholine 4.0 mg/ml dose.
C) Give 10 breaths of the next dose.
D) Stop-the test is positive.

Correct Answer

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