A post-bronchodilator FEV₁/FVC ratio below 0.70 is the GOLD criterion for confirming airflow obstruction consistent with COPD — but a ratio of 0.68 alone does not mean you have COPD without clinical context. At Pulmovista Clinics, Dr. Dixit Kumar Thakur interprets this finding alongside your symptoms, smoking history, age, exposure history, DLCO, and reversibility test. In older adults (above 70), a ratio of 0.65–0.70 may represent normal age-related changes rather than COPD. In a 40-year-old non-smoker, it warrants thorough investigation. Spirometry results require expert interpretation — not just a number comparison to a threshold.
