Flow Volume Loops

Question 1

what type of loop would you see in Obstructive lung disease

Answer 1

Due to lower EPP and therefore collapse of airways

Question 2

what type of loop would you see in restrictive lung disease?

Answer 2

Decrease expiration of FVC due to decrease lung compliance

Question 3

what type of loop would you see in variable extrathoracic (upper airway obstruction such as sleep apnoea)

Answer 3

decrease inspiration

Question 4

what type of loop would you see in fixed upper airway and neuromuscular weakness?

Answer 4

Question 5

What does a normal flow volume loop look like?

Answer 5

Question 6

Explain out of the 3 graphs from a spirometer, which one you would most likely want, which one you can obtain if you cannot obtain the most desirable and what they all show/represent

Answer 6