Naris
Naris
User’s
Manual V14 14/02/20 Page 27 of 52
MAKING MEASUREMENTS
1)
Have the patient sit back in a chair (some workers advocate use of an adjustable
forehead and chin rest), select and fit a nosepiece, and apply the sound tube
(perhaps suitably prepared with gel) to the selected side. The sound tube can be
held by the patient, or by the clinician but we believe this is best left to the patient,
with one hand holding the sound tube near the bottom and one near the top.
2)
When suitably positioned, ask the patient to close their mouth and
gently
breathe in
and out through their nose to check for leakage between their nose and nosepiece.
3)
If OK, ask them to open their mouth and return to mouth-breathing. When ready to
make the measurement, ask the patient to take a breath in through their mouth and
hold their breath. Click on the red
Acquire
button, or middle-click on the mouse with
the cursor inside the capture window to sample the data. This process can be
repeated until at least 3 consecutive results show little variation. If the patient can
co-operate, the measurements may be made in rapid succession (with 600mS or so
between samples) during a single breath-hold manoeuvre.
N.B.
a footswitch (optional extra) is available as an alternative to clicking on the red
Acquire
button.
4)
If the results are satisfactory, select the other side (L or R), and repeat the process,
remembering to change the nosepiece, if anatomical.
5)
The test results are automatically added to the patient's results file.
6)
Click on
to print out the currently highlighted curves, or alternatively click on
Report
to select the curves from the displayed list for printout. If you want a full
page print out of a particular test, you can highlight it and click on the arrow on the
right of the printer symbol and select
Print on full page.
7)
The results can be saved by clicking on
Save
, confirming the file name to save to, and
then clicking on
OK
.
