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, How is COPD diagnosed?COPD is diagnosed using spirometry. A post-
bronchodilator FEV1/FVC ratio less than 0.70 confirms
the diagnosis.
How is asthma diagnosed?Asthma is diagnosed based on clinical symptoms
such as wheezing, cough, dyspnea, and chest tightness
along with pulmonary function testing showing
reversible airflow obstruction.
Classic characteristics of COPDChronic, progressive, largely irreversible airflow
limitation caused primarily by smoking; symptoms
include chronic cough, sputum production, wheezing,
dyspnea, and poor exercise tolerance.
Classic characteristics of asthmaChronic inflammatory airway disorder
characterized by bronchial hyperreactivity, airway
inflammation, wheezing, cough, dyspnea, and chest
tightness.
Key differences between COPD andCOPD is progressive and largely irreversible and
asthmamost commonly caused by smoking, whereas
asthma is immune-mediated inflammation with
reversible airway obstruction.
Similarities between COPD andBoth involve airway inflammation,
asthmabronchoconstriction, wheezing, dyspnea, and are
treated with bronchodilators and anti-inflammatory
medications.
Initial pharmacologic treatment forGroup A COPD: bronchodilator; Group B COPD:
COPDLABA plus LAMA; patients with frequent
exacerbations may require LABA + LAMA or triple
therapy with LABA + LAMA + ICS.