Which answer is consistent with the flow-volume curve shown?
A) Normal forced expiratory flow pattern
B) Variable intrathoracic obstruction
C) Airway obstruction
D) Fixed extrathoracic obstruction

Question

Which answer is consistent with the flow-volume curve shown? 
A) Normal forced expiratory flow pattern 
B) Variable intrathoracic obstruction 
C) Airway obstruction 
D) Fixed extrathoracic obstruction

Quizplus · Accepted Answer

The flow-volume curve shows a pattern consistent with airway obstruction. There is a reduced peak expiratory flow rate and a flattened expiratory limb, indicating difficulty with expelling air from the lungs. This pattern is often seen in conditions such as asthma and chronic obstructive pulmonary disease (COPD).

Which Answer Is Consistent with the Flow-Volume Curve Shown