5
1. Sit down when blowing into the device (unless the physician
advises otherwise).
2. Turn the device on and insert the mouthpiece.
3. When the device is ready for a test
, breathe in as deeply as
possible, hold the Spiro
lung monitor ready in front of the mouth.
4. Holding the breath, place the mouthpiece into the mouth, biting
the mouthpiece lightly, and with the lips firmly sealed around it.
5. Blow out as HARD, as FAST and as LONG as possible (the
device will stop taking readings after 6 seconds). Be careful not to
block the mouthpiece with the tongue or teeth. A ‘spitting’ action
will give false readings.
6. Following each blow and at the end of the test session, the
FEV1 value will be displayed and below that, FEV1 % Personal
Best results for that blow.
7. Pressing the
button will show the FEV6 result.
8. Pressing the
button again will show the FEV1/FEV6 result.
9. Pressing the
button again will show the FEF25-75 result.
10. With the blow icon showing, blow again
. Usually 3 blows
are required.
11. To view the best test in the session (best FEV1 and best
FEV6), press the
“Enter” button
. This is the value that is recorded
for the session in the device history.
Note: if an exclamation mark
!
appears, this means it was not a
good quality blow and the subject should blow again.
!
appears
when: The Vext (extrapolated volume) is > 5% or 150mL of FEV6
or a cough is detected in the 1
st
second
If the subject experiences dizziness or fatigue during the test
session, wait until this passes before blowing again or terminate
the session.
