Using the Z Vent Ventilator
9650-002360-01 Rev. A
ZOLL Z Vent Ventilator Operator’s Guide
4-9
Warning!
During pressure-targeted ventilation, always set the high tidal volume just above the
patient's maximum tidal volume. In the event of disconnection or decannulation, the
increase in volume will trigger the alarm.
Leak Compensation
Leak Compensation (LC) is available in all pressure-targeted ventilation modes and provides
flow during the expiratory phase to maintain the baseline pressure caused by a leaking airway
or facemask. Leak compensation can accommodate leaks in the range of 0 to 30 liters per
minute.
To activate leak compensation, follow these steps:
1. Press the Mode parameter button twice. The “No Leak Compensation” icon highlights.
2.
Turn the
Dial
to turn leak compensation ON. A pop-up message appears asking for
confirmation.
3.
Press the
Accept
button to activate Leak Compensation.
To avoid nuisance alarms in patients with active leaks, Leak Compensation suppresses the
following alarms:
•
Low Airway Pressure (# 2071)
•
High Tidal Volume (# 2072)
•
Low Tidal Volume (#2073)
Caution
Once the patient is stable on CPAP or BL, the suppressed alarms should be set to ensure safe
ventilation of the patient. When in BL or CPAP modes, the Insufficient Flow alarm (Service
Code: 2095) triggers when the patient's inspiratory flow is greater than 100 lpm for two
concurrent breaths. The user may choose to decrease the magnitude of the trigger pressure (from
default setting of -2 cm H
2
O to -1 or -.5 cm H
2
O) and decrease the Rise Time to 1 so that the
flow reaches the maximum in the shortest amount of time.
Context Menu
The Apnea Back Up context menu is accessible when the primary parameter is set to CPAP or
BL modes.
Pressing and holding the Mode parameter button in CPAP or BL Modes displays the menu. The
menu displays:
•
PIP Target
•
BPM
•
I:E
Apnea Back Up default settings are PIP target of 20, BPM 12, I:E (1:3), these settings should be
adjusted for the patient you are supporting in CPAP or BL modes.
When Apnea ventilation is enabled, the ventilator provides pressure targeted breaths at the
default Apnea settings or the provider can chose to change the settings. Apnea Backup is
triggered using the Low Breath rate alarm limit.
If the low breath limit is set to 4 and a breath is not detected every 15 seconds the ventilator will
begin ventilating at the Apnea back up settings and trigger an alarm. In CPAP or BL modes,
Apnea Backup is automatic.
