Which of the Following Differentiates Chronic Obstructive Pulmonary Disease (COPD)

question 6

Multiple Choice

Which of the following differentiates chronic obstructive pulmonary disease (COPD) from asthma?

• A) COPD is an obstructive disease, and asthma is a restrictive disease.
• B) The FEV1/FVC ratio is reduced in asthma but not in COPD.
• C) Airflow obstruction caused by chronic obstructive pulmonary disease is irreversible, whereas it is reversible in asthma.
• D) COPD is characterized by an immunoglobulin E response, whereas asthma involves other mediators

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