NDD easyone pro, Руководство оператора, Страница: 88 / 188

Quality Messages and Quality Grades
88 EasyOne Pro™ / EasyOne Pro™ LAB
SVC Quality Grades
5.3 DLCO Quality Messages and Quality Grades
The quality grading is based on ATS/ERS Guidelines [3].
DLCO Quality Messages
Rating Criteria
A At least 3 acceptable tests AND the difference between the best VC values is equal to
or less than 150 ml.
B At least 2 acceptable tests AND the difference between the best VC values is equal to
or less than 150 ml.
D (1) At least 2 acceptable trials but the results are not reproducible according to 'B'.
D (2) Only one acceptable trial
F No acceptable trial available
Message
Criterion
Recommended action
Breath Hold Time out
of Range
Maneuver not
acceptable. Breath
Hold Time is outside
the 8-12 seconds
range
Breath-hold time outside 8 to 12
seconds Exhale immediately when the
valve opens
Parameter out of
Range
Test cannot be evalu-
ated; sensor signals
do not pass QC
check
A parameter is out of range, e.g. a
gas concentration is higher or
lower than permitted
0) Helium concentration out of
range
1) CO at zero not within 80 ppm
2) CO at DLCO test gas not
within 500 ppm
3) Alveolar CO out of range
4) Expiratory CO out of range
5) VA out of range
6) DLCO out of range
Check for leaks; make sure con-
centrations of gas cylinder are
entered correctly