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A Pulmonary Function Test on Asthma and COPD

A Pulmonary Function Test on Asthma and COPD

Ganong's respirometer. ©sciencepics/Shutterstock.com

1. Pulmonary function test (PFT) results showing an FEV1/FVC ratio <70% in adults and <85% in children aged 5-18 years old could indicate which of the following:

A. An obstructive defect

B. A restrictive pattern

C. Additional testing is necessary

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