A 58-year-old male smoker with a 40 pack-year history presents with progressive dyspnoea and chronic cough productive of purulent sputum for the past 3 years. Chest X-ray shows bronchial wall thickening and tram-track sign. Pulmonary function tests reveal FEV₁/FVC ratio of 0.62 and poor bronchodilator response (FEV₁ improvement <12% and <200 mL after salbutamol). Which of the following PFT patterns best explains his airflow obstruction?
Ready to test yourself?
Test your Medicine knowledge with AI-powered MCQs and detailed explanations — no signup required to try.
Sign up free and practice all 1 PFT Interpretation in COPD MCQs with AI-powered explanations tailored to your performance.
Create Free Account