Spirodoc
cod. 980156
Rev 1.3
EN 42/67
E
N
GLI
S
H
For a POST test the messages are the same but instead of dealing with an
“obstruction” the POST test refers to a “restriction”.
Through the use of a mathematical analysis applied to certain indices and parameters
calculated in the FVC test , the
SPIRODOC
is capable of producing a list of quality
control comments useful to assess the quality and reproducibility of the manouvers
performed.
The quality control check assigns a letter for the current spirometry session as
described below:
PRE test
A = At least to acceptable manouvers, with the highest two FEV1 values matching to
within 100 mL and the largest two FEV6 values within 100 mL
B= At least two acceptable manoeuvres, with the FEV1 values matching to within 101
to 150 mL
C= At least two acceptable manoeuvres, with FEV1 values matching to within 151 to
200 mL
D= only one acceptable manoeuvres, or more than one, but the FEV1 values not
matching to within 200 mL (with no interpretation).
F= No acceptable manoeuvres (with no interpretation).
POST test
A = two acceptable (1) FEV1 values matching within 100 mL
B= two acceptable (1) FEV1 values matching within 200 mL
C= two acceptable (1) FEV1 values that do not match within 200 mL
D= only one acceptable (1) FEV1 manoeuvre
F= No acceptable (1) FEV1 manoeuvres
An acceptable manoeuvre means: good start and satisfactory exhalation (duration and
flow)
Several
comments
related to the single test are calculated, however
SPIRODOC
will
only point out the most relevant to facilitate the test interpretation.
ERROR IN Vext and PEFT
If the extrapolated volume Vext is greater than 500 mL or more than 5% of the FVC,
or
if the PEFT (time to peak flow) is greater than 200 ms, this message is shown:
Repeat test and blow faster
FLOW DROP 50%
If there is a drop in the flow of 50% and a recovery within the first second. The
following message appears:
Coughing during test
FET ERROR
If the
FET
is less than the minimum (6 seconds), this message is shown:
Expiry time insufficient < 6s
