GOLD 3 COPD corresponds to which FEV1 range?

GOLD 3 COPD corresponds to which FEV1 range?

• A. FEV1 30-49% predicted, severe limitation.
• B. FEV1 ≥80% predicted, mild airflow limitation.
• C. FEV1 50-79% predicted, moderate limitation.
• D. FEV1 <30% predicted, extreme limitation.

Answer: (D)

GOLD stages classify COPD severity by how much the airways obstruct airflow, using FEV1 as a percent of the predicted value after bronchodilator. The rankings are mild ≥80%, moderate 50–79%, severe 30–49%, and very severe <30%. So GOLD 3 corresponds to 30–49% predicted, a severe level of airflow limitation. The <30% range describes GOLD 4 (very severe).

GOLD stages classify COPD severity by how much the airways obstruct airflow, using FEV1 as a percent of the predicted value after bronchodilator. The rankings are mild ≥80%, moderate 50–79%, severe 30–49%, and very severe <30%. So GOLD 3 corresponds to 30–49% predicted, a severe level of airflow limitation. The <30% range describes GOLD 4 (very severe).