Bedfont GastroCH4ECK Gastrolyzer User Manual page 13

A timer will be shown onscreen, whilst the sensors are
zeroing. This may take up to 75 seconds if a test has just
been carried out.
NOTE: If GastroCHART™ is being used to record the readings,
on the patient's profile click 'capture reading' now.
Once zeroed, breath bag sampling will begin automatically –
make sure that the clamp is open. At this point, the device
needs no further intervention until a reading is recorded.
The device will draw the breath sample for analysis; this will
take 45 seconds, as indicated on the screen.
The results will be shown onscreen.
Once the test is complete, the final O
observed by pressing the question mark.
This will show the O
2
factor applied to the reading if it was required. A visual
indicator will help to interpret the result:
a. Good test, little or no correction factor applied
b. Satisfactory test, correction factor applied
c. Poor test, high correction factor applied and
another test is recommended
When finished, press 'HOME' to return to the home screen.
concentration can be
2
concentration in % and the correction
12