Pulmonetic Systems LTV 950 - Checking the Ventilator for Proper Operation

Page C-18 LTV
®
Series ventilator Operator’s Manual
p/n 10664, Rev. Y
Checking the Ventilator for Proper Operation
1) Verify that the ventilator is functioning properly by performing the Ventilator Checkout Tests.
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• Disconnect the patient from the ventilator and ventilate the patient using an alternative
method before running the Ventilator Checkout tests.
2) Connect the AC adapter to a valid AC power source. Connect the patient circuit to the ventilator
and to a test lung with a compliance of 10 ml/cmH2O and a resistance of 5 cm/L/sec. Do not
connect the Oxygen supply. Turn the ventilator on and proceed with the checkout as defined in
the following table:
Ventilator Settings and Procedure Performance Requirement
A) Configure the ventilator settings as
follows, and run the equipment for at
least two minutes:
Mode: Volume, Assist/Ctrl
Low Press 02: Off
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Breath Rate: 12
Tidal Volume: 500
Insp. Time: 1 sec
Pressure Support: 0
95
O
2
%: 21
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Sensitivity: 3
High Pressure Limit: 100
Low Pressure Alarm: 5
Low Min Vol: 1.0
PEEP: 5 cmH
2
O
Selected Monitors should read as follows:
• Exhaled Tidal Volume: 383 to 633 ml
• I:E Ratio : 1:3.8 to 1:4.2
• Total Breath Rate: 12 bpm
• Total Minute Vol: 4.6 to 7.6 L
• No Alarms
B) Set the O
2
% control to 22%
(LTV
®
1000 Only)
LOW O2 PRES alarm activates after a short
pause
C) Reset O
2
% to 21 and clear the
alarm. Set the Low Min Vol Alarm to
10 L
LOW MIN VOL alarm activates
D) Reset the Low Min Vol Alarm to 1.0
and clear the alarm. Set the Low
Pressure alarm to 60.
LOW PRES alarm activates
E) Set the Low Pressure Alarm to 5 and
clear the alarm. Set the High Pres
Limit to 10 cmH
2
O below the Peak
Inspiratory Pressure.
HIGH PRES alarm activates
F) Reset the High Pressure Limit alarm
to 100 and clear the alarm.
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See Chapter 11 - Ventilator Checkout Tests for more information
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Oxygen source and tested O
2
% only apply to the LTV
®
1000.
95
Not applicable to the LTV
®
900.