MCQ – 136864

According to GOLD guidelines, what is the approximate cutoff value of FEV₁ (% predicted) associated with clinically significant resting hypoxemia in chronic COPD patients?

Correct Answer � B Explanation

– According to GOLD guidelines, an FEV1 less than approximately 30 percent predicted is commonly associated with severe airflow limitation and clinically significant resting hypoxemia in COPD patients.
– At this level of lung function impairment, gas exchange is substantially compromised, leading to low arterial oxygen levels.
– This cutoff is also used to identify candidates for long-term oxygen therapy due to resting hypoxemia.