Which of the following methods can be used to measure airway caliber on a 4-year-old patient with asthma?

Question

Quizplus · Accepted Answer

Impulse oscillometry (IOS), also referred to as the forced oscillation technique (FOT), is a method to evaluate airway caliber using a miniature loudspeaker to produce oscillations within the airway. Impulse oscillometry is a simple test that does not require the active cooperation of the child, and studies have shown that IOS can be performed successfully in 3- to 6-year-olds with asthma.

Which of the Following Methods Can Be Used to Measure