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Aespire 7900
Message
Priority
Volume Apnea
Medium
Vol Apnea > 2 min
High
Vt Not Achieved
Low
Vte > Insp Vt
Medium
a. When power is first turned on.
b. Flow sensors are also used to measure pressures.
c. The sustained pressure threshold is calculated from the pressure limit setting. When mechanical ventilation is
on, the sustained limit is calculated as follows: for pressure limits < 30 cmH
cmH
O; for Plimit between 30 and 60 cmH
2
pressure limits > 60 cmH
are on, the sustained pressure limit increases by PEEP - 2 cmH
When mechanical ventilation is off, the sustained pressure limit is calculated as follows: for pressure limits ≤ 60
cmH
O, the sustained pressure limit is 50% of the pressure limit (Plimit); for pressure limits > 60 cmH
2
sustained pressure limit is 30 cmH
4-12
Cause
No mechanical breaths or
spontaneous breaths >20
mL in last 30 seconds.
No mechanical breaths or
spontaneous breaths >20
mL in last 120 seconds.
Tidal volume measured by
inspiratory flow sensor
< set value 6 breaths in a
row after the first minute of
mechanical ventilation.
Expired volume > inspired
volume for 6 breaths with a
circle breathing system.
O, the sustained limit is 20% of the pressure limit (Plimit); for
2
O, the sustained pressure limit is 12 cmH
2
O.
2
Action/Concerns
Check patient. Bag as needed.
Check for disconnects. If the
patient is on a heart lung
machine, select Cardiac Bypass
on the main menu.
See above.
Adjust controls to supply
adequate tidal volumes. Check
I:E; Plimit; and volume settings.
Check patient condition.
O, the sustained pressure limit is 6
2
O. If both PEEP and mechanical ventilation
2
O (the compensated weight of the bellows).
2
Repair
- - -
- - -
Possible leak.
- - -
O, the
2
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