Gold/Hardie Interpretation - NDD EasyOne Operator's Manual

EasyGuide

11.2 GOLD/Hardie Interpretation

The diagram below describes how the interpretation is determined (see reference [11] , [12])
START
Maneuve
r Quality
OK?
FEV1/FVC limit age related:
age < 70 years: 70%
70 <= age < 80: 65%
age > 80 years: 60%
FEV1/FVC
< FEV1% NO
limit
FEV1
>= 80%
Predicted
FEV1
>= 50%
Predicted
FEV1
>= 30%
Predicted
NO
No
NO
Interpretation
Obstruction
Mild Obstruction
Moderate
Obstruction
Severe
Obstruction
Very Severe
Obstruction
FVC
<
LLN A ND
Spirometry
FEV1 <
LLN
Smoker?
Spirometry; At
C OPD risk
Restriction
Page 25
Normal
Normal
Restriction
Possible
END