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Quality Messages and Quality Grades
86 EasyOne Pro™ / EasyOne Pro™ LAB
* When using FEV6 instead of FVC, FEV6 is also used for the determination
of the quality message.
FVC/FVL Quality Grades
Deeper breath … FEV1 or FVC* not reproducible.
Difference with respect to best
test greater than 150 ml or 100 ml
if FVC is < 1.0L (for age

6: 100 ml
or 10% of FEV1 or FVC* whichever
is greater)
The test differs greatly from previ-
ous tests. The patient can inhale
even more deeply and exhale
even more air.
No maneuver
detected! No parameter calculation possible Instruct the patient to perform the
maneuver according to its defini-
tion.
Session Complete!
Great Job! QC grade A or B reached. The test is complete. An adequate
number of good tests is available.
Message Criterion
Recommended action
Rating Criteria
A At least 3 acceptable tests (for age

6: 2 acceptable) AND the difference between the
best two FEV1 and FVC values is equal to or less than 100 ml (80 ml if FVC < 1.0 l) (for
age

6: 80 ml or 8% of FVC whichever is greater)
B At least 3 acceptable tests (for age

6: 2 acceptable) AND the difference between the
best two FEV1 and FVC values is equal to or less than 150 ml (100 ml if FVC < 1.0 l)
(for age

6: 100 ml or 10% of FVC whichever is greater)
C At least 2 acceptable tests AND the difference between the best two FEV1 and FVC
values is equal to or less than 200 ml (150 ml if FVC < 1.0 l) (for age

6: 150 ml or
15% of FVC whichever is greater)
D (1) At least 2 acceptable trials but the results are not reproducible according to 'C'.
Quality message: "Result not reproducible" OR only one acceptable trial. Quality
message: "Only one acceptable trial".
D (2) Only one acceptable trial
F No acceptable trial available