Heyer iTernIS ADV, Operator'S Manual

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Operational verification | iTernIS ADV
15. 4
Table 15-1 Functional verification
TEST ACTION VERIFICATION
Frequency
Monitor the amount of brea-
ths in one minute using the
clock second hand.
The value obtained from the
previous action must coincide
with the one monitored by the
ventilator.
Tidal volume (VT)
Contrast the VT value regu-
lated with the monitored one
for the preset value. Repeat
for a VT of 50% higher and
for a VT of 50% lower.
The monitored value must
be within ±10% of the regu-
lated value.
PEEP Keep the preset value.
Verify that the base pressu-
re line remains stable.
Sensitivity
Apply pressure on the test
lung in order to generate an
inspiration.
The inspiration must be
generated.
Sensitivity
Regulate the sensitivity to
0.5 L/min.
The autocycling should not
be verified (allow for at least
five mandatory breaths).
Sensitivity
Regulate the sensitivity to
-0.5 cmH
2
O.
The autocycling should not
be verified (allow for at least
five mandatory breaths).
Manual inspira-
tion
Press [Manual Insp].
The ventilator should initiate
a mandatory breath.
Flow waveform Change the flow waveform.
On the flow chart, the profile
change of the flow wave -
forms should appear.
Oxygen
Compare the monitored
O
2
concentration with the
regular concentration.
The monitored value should
be between 45% and 55%
Oxygen
Change the concentration
of O
2
up to a value of 100%.
The monitored oxygen con-
centration should be of at
least 95% after ten breaths.
NOTE
• During the VT test, the alarm limit of maximum
inspiratory pressure may be exceeded, and this
will activate the corresponding alarm signals. In
this case it is necessary to regulate the mini-
mum inspiratory pressure limit, so that the set
VT may be delivered correctly. Otherwise, this
alarm will limit the delivered VT, and the test will
not be executed.
The alarm verification tests are presented in Table 15-2. These tests are designed
to be carried out in the suggested order, and require that the value of a modified
ventilator parameter or alarm limit be restored to its original value once the test has
been concluded.
15.4 | Alarms Verification