LTV 1100 Operator Manual - CareFusion

Sensitivity
Use the Sensitivity control to establish the threshold level to allow the patient to flow trigger delivered
breaths.
A flow trigger occurs when:
The O 2 Conserve feature is OFF (CONSERVE OFF),
And The ventilator is operating in Flow Sensing Patient Circuit mode,
And The Sensitivity is set to any value from 1 to 9 (Sensitivity value is in lpm, when O 2 Conserve
is off and the ventilator is operating in Flow Sensing Patient Circuit mode),
And the ventilator is in exhalation phase,
And the minimum exhalation time has expired,
And the flow is greater than or equal to the Sensitivity setting
The LEAK measurement displayed in the RT XDCR DATA menu can be used to help select an
appropriate sensitivity value. Typically, the sensitivity value is set higher than the displayed LEAK
measurement. For instance, if the LEAK measurement were up to 2.53, a minimum sensitivity of
three (3) would be appropriate.
A pressure trigger occurs when:
The O 2 Conserve feature is ON (CONSERVE ON) and/or the ventilator is operating in
Non-Flow Sensing Patient Circuit mode,
And The Sensitivity is set to any value from 1 to 9 (Sensitivity value is in cmH 2 O, when O 2
Conserve is on and/or the ventilator is operating in Non-Flow Sensing Patient Circuit mode),
And the ventilator is in exhalation phase,
And the minimum exhalation time has expired,
And the airway pressure drops below or equal to the Sensitivity setting
Backup pressure triggers are enabled when the setting is any value other than a dash “-”.
A backup pressure trigger occurs when:
The Sensitivity is set to any value from 1 to 9,
And the ventilator is in exhalation phase,
And the minimum exhalation time has expired,
And the airway pressure drops below -3 cmH 2 O
When a trigger is detected, the Patient Effort LED is illuminated briefly.
NOTE
Triggers are disabled when the Sensitivity setting is set to “-”.
REMARQUE
Les amorces sont désactivées lorsque le réglage de la sensibilité est réglé sur « - ».
To set Sensitivity:
1) Push the Sensitivity button.
2) Change the setting using the Set Value knob.
Range: 1 - 9, “-”, 1 is the most sensitive, 9 is the least sensitive and “-“ is off.
21106-001 Rev. E Operator’s Manual - LTV ® 1100 Ventilator 6-13