PFT Flashcards
1
Q
Pneumotachymeter measures
A
Flow & pressure
2
Q
FEV1/FVC ratio def
A
The amount of lung capacity that can be forced out
3
Q
FVC below 80%
A
Restrictive
4
Q
FEV1 below 80%
A
Obstructive
5
Q
FEV1/FVC >70% is obstructive or restrictive
A
Obstructive
6
Q
Mild disorders
A
60-79%
7
Q
Moderate disorder
A
40-59%
8
Q
Severe disorder
A
<40%
9
Q
FEF 200-1200
A
Decreased w/ large Obstructive
10
Q
FEF 25-75%
A
Decreased w/small obstruction
11
Q
FEV1 increases ≥ 12%, or 200 ml post bronchodilator.
A
Obstructive disease is reversible post bronchodilator
12
Q
TLC calculated (3 formulas)
A
VC + RV = TLC
IC + FRC = TLC
IRV + TV + FRC = TLC
13
Q
IC exam note
A
Pre Op measured helps guide therapy PostOp by identifying the patient’s baseline values.
14
Q
FRC Measured with??
A
Body Box, Helium,nitrogen
15
Q
VT decreased in????
A
Restrictive disease
