A pulmonary function test result with a post bronchodilator ratio of less than or equal to 0.7 indicates non reversible airflow limitation associated with what condition?
a. COPD
b. asthma
c. restrictive lung disease
d. secondary cardiovascular dysfunction
Answer: a. COPD
A pulmonary function test result with a postbronchodilator ratio of less than or equal to 0.7 indicates nonreversible airflow limitation associated with COPD. The test uses the forced expiratory volume and forced vital capacity to rate the severity of the condition.