QUESTION: 53

Which of the following thresholds for a clinically significant change in lung function from the beginning to the end of a methacholine challenge test is significant?

An increase of more than 20% in airway resistance
Adecline of more than 30% in FEF25-75%
Adecline of more than 20% in FEV1
Adecline of more than 20% in inspiratory capacity

Answer(s): C

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A pulmonary function technologist is reviewing an asthma action plan. The patient takes a low-dose inhaled corticosteroid and a long-acting beta2-agonist twice daily. The patient's personal best peak flow is 600 L/min. Which of the following instructions should be given to the patient when the peak flow drops to 500 L/min?

Add montelukast (Singular).
Continue the current regimen.
Go to the emergency department.
Double the steroid dose.

Answer(s): A

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QUESTION: 55

Which of the following sets of FIF data is most consistent with an extrathoracic airway obstruction?

Option A
Option B
Option C
Option D

Answer(s): D

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QUESTION: 56

A 45-year-old female with sarcoidosis has pulmonary function tests annually. The following data have been recorded:

A pulmonary function technologist should conclude that

The patient's restrictive component has worsened.
The patient has developed mild obstructive airway disease.
The patient has a normal rate of loss for FEV1.
Incorrect predicted values have been used.

Answer(s): D

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QUESTION: 53

QUESTION: 54

QUESTION: 55

QUESTION: 56