Newport HT50 - Page 31

SECTION 3
SERHT50NA A0808 3-7
SPONT
(Spontaneous Ventilation)
In this mode, all breaths are patient triggered by spontaneous
efforts. Psupport (Pressure Support Ventilation) may be used to
support spontaneous efforts. When PEEP/CPAP is set above 0,
the ventilator mode is CPAP (without Psupport) or Bilevel Positive
Airway Pressure (with Psupport).
▲
Up and ▼ Down Control
The ▲Up/▼Down control buttons have multiple uses on the HT50.
1. Parameter Adjustment: Use the ▲Up/▼Down buttons to
adjust v
entilation control parameter values (including Pressure
Control and Volume Control values), alarms, and humidifier
setting (if available). Select the desired parameter by pressing its
touch button once. The corresponding value (numerical display)
will blink. Press the ▲Up control to increase or the ▼Down to
decrease the affected parameter value
. The value continuously
changes when the ▲Up/▼Down controls are pressed and held.
The v
alue adjustment is accepted if (1) the user presses the
selected parameter button again, or (2) the user selects a
different parameter, or (3) five seconds elapses. Pressing a
parameter button without pressing either the ▲Up or ▼Down
control b
utton within 5 seconds causes the parameter to retain its
current value.
NOTE: If in the On condition and switching betw
een Volume
Control and Pressure Control, the value adjustment for the new
breath type selected (Volume or Pressure) will be accepted as
noted above, but the breath type (VC or PC) will only change if
the user presses the new breath type control button again.
2. Monitored Information: The ▲Up/▼Down controls are used to
access and displa
y monitoring messages in the Message Display
Window. Monitored information includes volume, frequency,
pressure values and operation information. See pg 3-23 for more
information on the Message Display Window.
When the HT50 is ventilating, and there are no alarm messages
displayed on the Message Display Window, press the ▲Up control
b
utton to access the monitoring information. Pressing the ▲Up
b
utton again allows you to scroll through the messages.
3. Changing Default Settings: The ▲Up/▼Down controls are
also used in User Set Up to change a set up value
. See User Set
Up on pg 3-27 for more details.