LTV 1200 Operator's Manual - CareFusion Emergency Preparedness

Pressure Support
This control establishes the target pressure above the PEEP setting for Pressure Support patient
breaths. If Pressure Support is set to dashes “- -“, all patient breaths will be given as Spontaneous
breaths. Inspiratory flow for Pressure Support and Spontaneous breaths is controlled to meet the
patient demand.
NOTE
Pressure Control and Pressure Support breaths do compensate for PEEP. Delivered pressure is
controlled by the Pressure Support setting and is affected by the PEEP setting. For example, a
Pressure Control setting of 20cmH2O and a PEEP setting of 10cmH2O results in a Peak Inspiratory
Pressure (PIP) of 30cmH2O.
REMARQUE
Le contrôle de la pression et la pression de support des respirations compensent la PEP. La pression
administrée est contrôlée par le réglage du contrôle de la pression et elle dépend du réglage PEP.
Par exemple, un réglage du contrôle de la pression de 20 cmH2O et un réglage PEP de 10 cmH2O
donnent une pression inspiratoire maximale (PImax) de 30 cmH2O.
To set Pressure Support:
1) Push the Pres. Support button.
2) Change the setting using the Set Value knob.
Range: “- -”, 1 - 60 cmH2O
Pressure Support breaths may be terminated by flow or by time.
Flow Termination: Pressure Support breaths are flow terminated when the flow decreases to a set
percentage of the peak flow 24 delivered for that breath.
Time Termination: Pressure Support breaths are time terminated 25 when the inspiratory time exceeds
two breath periods, or when the inspiratory time exceeds the set Time Termination Limit 26 before the
flow termination criteria is reached. The Pres. Support display will flash briefly after each time
terminated breath.
The Rise Time profile for Pressure Support breaths may be selected under Extended Features 26 .
Pressure Support in NPPV Mode
When NPPV mode is selected, the Pres. Support control is used to set the IPAP value.
24 See Chapter 10 - Extended Features to set the Variable Flow Termination for Pressure Support breaths.
25 Only Pressure Support breaths are flow and/or time terminated (Time Termination must be enabled).
26 See Chapter 10 - Extended Features to set the Variable Time Termination or Flow Rise Time profile.
Operator’s Manual LTV ® 1200 Ventilator Page 6-23
p/n 18247-001, Rev. G