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Diagnosing respiratory disorders quiz
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Which of the following statements is correct regarding spirometry?
Choose all that apply
Individual test results are compared with predicted values for a large population of normal individuals.
The reference population to which the patient is compared is normally distributed with regard to sex, age, and height.
The traditional method of pulmonary function test interpretation is based on methodology that has been well validated statistically.
The traditional method of interpretation uses an FEV
1
/ FVC ratio < 70% as indicative of airway obstruction.
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