Lung Function Tests Flashcards
1
Q
Define Vital Capacity
A
Volume of air expired from the lungs from a maximal inspiration using a slow/relaxed manoeuvre
2
Q
Define FVC
A
Forced Vital Capacity
Volume of air that can be forcibly expelled from the lungs from a position of maximal inspiration
3
Q
Define Forced Expiratory Volume (FEV1)
A
Volume of air forcibly expelled from the lungs in the first second- following a maximal inspiration
4
Q
Define FEV1/FVC
A
Volume of air forcibly expired in the first second as a percentage of the total volume exhaled
5
Q
What is the difference between spirometry in an obstructive and restrictive pattern?
A
Obstructive will reach normal volume and FEV1 greatly reduced
Restrictive will not reach normal volume but will have a near normal FEV1
