MIR SPIRODOC Manual De Usuario página 83

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Normal Spirometry
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Mild obstruction
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Moderate obstruction
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Moderate severe obstruct.
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Severe obstruction
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Very severe obstruction
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Mild Restriction
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Moderate Restriction
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Moderate Severe Restriction
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Severe Restriction
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Very severe Restriction
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Obstruct. + Restrict
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 manouvres performed.
The quality control check assigns a letter for the current spirometry session as described below:
PRE test
A = At least to acceptable manouvres, 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 FEV1 values matching within 100 mL
B= two acceptable FEV1 values matching within 200 mL
C= two acceptable FEV1 values that do not match within 200 mL
D= only one acceptable FEV1 manoeuvre
F= No acceptable 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:
FET ERROR
If the FET is less than the minimum (6 seconds), this message is shown:
FLOW ERROR
If the last point of the F/V curve is greater than 200 mL/s, this indicates that the expiration was not complete and thus this message is
shown:
Between tests, the Spirodoc checks the repeatability of the following parameters:
PEF repeatable when the difference between the two largest PEF is ≤ 0.67 L/s;
VC repeatable when the difference between the two largest VC ≤ 150 mL;
If FVC is > 1.0 L then:
FEV1 repeatable when the difference between the two largest FEV1 is ≤ 150 mL;
FVC repeatable when the difference between the two largest FVC is ≤ 150 mL;
if FVC is ≤ 1.0 L then:
SPIRODOC
Repeat test and blow faster
Expiry time insufficient < 6s
Blow out all air in lungs
cod. 980156 Rev 4.2.1
spirodoc
User manual
EN 37/48