The Forced Oscillation Technique Measures

Question

The forced oscillation technique measures:
A) Respiratory system resistance
B) Airway resistance
C) Airway compliance
D) Respiratory system compliance

Accepted Answer

The forced oscillation technique (FOT) is used to measure respiratory system resistance, which is defined as the ratio of pressure to flow during spontaneous breathing. FOT does not provide information on airway resistance or compliance. Instead, it measures the resistance of the entire respiratory system, including the airways, lung tissue, and chest wall. Therefore, option A is the correct answer.