Procedure
Procedure
Procedure
Procedure
LP6 Plus, LP10, and LP20 Technical Manual
November 2000
Page 3-14
Page 3-14
Page 3-14
Page 3-14
Pressure Limit Checkout (LP10, LP20)
Pressure Limit Checkout (LP10, LP20)
Pressure Limit Checkout (LP10, LP20)
Pressure Limit Checkout (LP10, LP20)
The following procedure only verifies those operational functions
unique to the Pressure Limit function of the LP10 ventilator. Those
functions which are verified in the Assist/Control mode are not
repeated here. Therefore, conduct Assist/Control operational verifi-
cation in addition to Pressure Limit Checkout.
Prior to beginning the checkout procedure, place all operating con-
trols in the position identified under Control Settings on page 3-6.
Record results on a copy of the Operational Checklist located at the
end of this chapter.
Switch/Action
From
To
Desired Response
AC POWER SWITCH
OFF
ON
Indicator light flash; AC
PWR/BATT CHARGE light on;
ventilator cycles once; pres-
sure gauge at 0 ± 1 division
MODE
Standby
Assist/Control
Alarms and indicators test;
ventilator cycles at 10 q1 1
BPM
VOLUME
0.5 liter
0.8 liter
Patient pressure reaches
~40 cmH
2
O
PRESSURE LIMIT
CONTROL
Full clockwise
rotation
Push in the outside
locking ring and turn
the small knob coun-
terclockwise until the
patient pressure reads
a peak of 20 cmH
2
O
The patient pressure consis-
tently reads peaks of 20 ± 4
cmH20 over five minutes.
Hold the test lung for several
cycles to prevent it from inflating
The patient pressure peaks
at 22 ± 6 cmH
2
O. Increased
exhaust occurs near the
Pressure Limit Control. The
Patient Pressure returns to 20
± 4 cmH
2
O after the test
lung is released.
MODE
Assist/Control
Standby
Completes pressure limit
control checkout
VOLUME
0.8 liter
0.5 liters
Pressure Limit Control
Previous setting Full clockwise rotation
(do not overtighten)