nursingnerds:COPD: A progressive, nonreversible disruption of airflow caused by chronic bronc
nursingnerds: COPD: A progressive, nonreversible disruption of airflow caused by chronic bronchitis, emphysema, and cigarette smoking. Unlike asthma, in which obstruction exists only during periods of crisis, the obstruction of COPD is permanent and irreversible. Keep reading -- source link
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