To further evaluate the diagnosis of asthma, a child has pulmonary function tests. Which test result is consistent with a diagnosis of asthma?

Question

Quizplus · Accepted Answer

A reduced forced expiratory volume in 1 second (FEV1) is consistent with a diagnosis of asthma. Asthma is characterized by airway inflammation and constriction, which can lead to a decreased ability to exhale forcefully. The FEV1 test measures the amount of air a person can exhale in 1 second after taking a deep breath. A reduction in FEV1 is a classic sign of airway obstruction seen in asthma.

To Further Evaluate the Diagnosis of Asthma, a Child Has