Question

A 55-year-old man with a 20-year history of smoking and chronic cough presents with increasing sputum production and shortness of breath. Post-bronchodilator FEV1/FVC is 0.68; FEV1 is 65% predicted. According to CTS COPD guidelines, what is required to confirm the diagnosis of COPD?

Accepted Answer

Persistent post-bronchodilator FEV1/FVC <0.70 in the context of risk factors and symptoms

Answer

Evidence of FEV1 reversibility >12% and 200 mL

Answer

DLCO measurement only

Answer

Chest X-ray showing hyperinflation

Answer

Peak flow variability

Practice question

A 55-year-old man with a 20-year history of smoking and chronic cough presents with increasing sputum production and shortness of breath. Post-bronchodilator FEV1/FVC is 0.68; FEV1 is 65% predicted. According to CTS COPD guidelines, what is required to confirm the diagnosis of COPD?