To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values?
1) FVC
2) FEV₁
3) FEF_{25% to 75%}
4) FEF_{75% to 85%}

Question

To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values? 1) FVC 2) FEV₁ 3) FEF_{25% to 75%} 4) FEF_{75% to 85%}

Quizplus · Accepted Answer

Improvement in FEV1 and FVC are commonly used to assess bronchodilator response, and FEF25%-75% can also indicate changes in small airway function.

To Determine Whether There Is a Positive Response to Bronchodilator