نتيجة فحص وظائف الرئة لمريض: FEV1/FVC يساوي ٠٫٥٨ بعد الموسع القصبي. ماذا تعني؟

A client’s post-bronchodilator spirometry shows FEV1/FVC of 0.58. What does this mean?

1. A restrictive pattern consistent with pulmonary fibrosis
2. Persistent obstruction consistent with COPD
3. A normal result because the ratio is above 0.5
4. Full reversibility consistent with controlled asthma

Answer: B) Persistent obstruction consistent with COPD. A post-bronchodilator FEV1/FVC below 0.7 indicates persistent obstruction, the diagnostic criterion for COPD. Restrictive disease gives a normal or high ratio with reduced volumes.