NEUROLOGY
SURGERY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -The ratio FEV1/FVC is between 70% and 80% in normal adults; a value less than 70% indicates airflow limitation and the possibility of COPD. FEV1 is influenced by the age, sex, height, and ethnicity, and is best considered as a percentage of the predicted normal value.
Detailed explanation-2: -Ratio of FEV1/Slow Vital Capacity of < 0.7 Is Associated With Clinical, Functional, and Radiologic Features of Obstructive Lung Disease in Smokers With Preserved Lung Function-PMC.
Detailed explanation-3: -Stage 2 (moderate) COPD: You may experience persistent coughing and phlegm (often worse in the morning), increased shortness of breath, tiredness, sleep problems, or wheezing. About one in five people have exacerbations that worsen their symptoms and cause the color of their phlegm to change.
Detailed explanation-4: -Conclusion: Adjustments of the GOLD criteria for diagnosing COPD are needed, and FEV(1)/FVC ratios down to 65% should be regarded as normal when aged 70 years and older.