LTV 1200 Operator's Manual - CareFusion Emergency Preparedness

Low Pressure O 2 Source
When selected, this option allows oxygen to be supplied from a low pressure / low flow oxygen
source such as an oxygen concentrator or line mounted flow meter. Oxygen from the low pressure
source is mixed with air inside the ventilator. The O2 percent delivered to the patient is determined by
the O2 inlet flow and the total minute volume and is not regulated by the ventilator. Use the Input O2
Flow chart (page 6-15) to determine the correct O2 flow for the desired FIO2.
• When the Low Pressure O2 Source option is selected and a high O2 pressure source is attached
to the ventilator, an Automatic High O2 Switch Over safety response generates a HIGH O2 PRES
alarm, switches the ventilator to High Pressure O2 Source mode and sets the percentage of
oxygen to be delivered in the gas flow to 21%.
When the Low Pressure O2 Source option is not selected, a high pressure oxygen source is
expected, and oxygen blending is done within the ventilator. The ventilator expects an oxygen source
with a pressure of 40 - 80 PSIG. The O2 percent delivered to the patient is determined by the O2 %
(O2 Flush) setting on the ventilator front panel.
To toggle the state of the Low Pressure O2 Source:
1) Push and hold the Low Pressure O2 Source button for three (3) seconds.
• While the Low Pressure O2 Source button is being held, the associated LED will be flashing
• When the Low Pressure O2 Source is selected, the associated LED will be on continually
While Low Pressure O2 Source is on:
• The O2 Inlet Pressure Low alarm is inactive.
• The O2 Pressure High alarm is set to activate at > 10 PSIG.
• The O2 % (O2 Flush) display will display dimmed dashes and O2 % cannot be set.
• Oxygen inlet flow must be set to obtain the desired oxygen percentage.
WARNING
Inspired Oxygen (FIO2) Concentration – If the patient has a variable respiratory rate, his/her minute
ventilation will fluctuate. If exact concentrations of inspired oxygen (FIO2) are required to be delivered
to the patient, it is recommended that an accurate oxygen analyzer with alarms be used.
AVERTISSEMENT
Concentration d’oxygène inspiré (FIO2) – Si la fréquence respiratoire du patient est variable, sa
ventilation-minute va fluctuer. Lorsqu’une concentration exacte d’oxygène inspiré (FIO2) est
nécessaire pour une transmission au patient, il est recommandé d’utiliser un analyseur de niveau
d’oxygène 2 précis, comportant des alarmes.
Operator’s Manual LTV ® 1200 Ventilator Page 6-13
p/n 18247-001, Rev. G