End TIdal Carbon Dioxide (EtCO
2
)
EtCO
2
- 9
2. Press the
Param.
softkey and select the EtCO2
menu item, then press
Enter
.
3. Press the
Zero
softkey until the
Start
menu item is
highlighted, then press
Enter
.
The unit zeros the module and displays the
"ZEROING CO2 MODULE" message for
approximately 15 seconds.
The units displays the message “ZERO DONE” upon
completion of the zeroing.
Note
Do not attempt zeroing for 20 seconds after
removing the adapter or cannula from the patient’s
airway. This time allows any CO
2
remaining in the
adapter or cannula to dissipate before zeroing. Do
not attempt to zero the module while the adapter or
cannula is in the patient’s airway. Zeroing with CO
2
in the adapter or cannula can lead to inaccurate
measurements and/or other error conditions. If you
attempt zeroing while CO
2
remains in the adapter
or cannula, the time required to zero the module
may be increased. If zeroing cannot be completed,
the message “ZERO FAILED” will be displayed. If
this occurs, clear any occlusion in the adapter or
cannula, remove the source of CO
2
, wait 20
seconds, and try zeroing again.
Applying a Sidestream Airway Adapter Kit
The sidestream airway adapter kit is intended for
monitoring the EtCO
2
of intubated patients.
Before attaching the airway adapter to the breathing
circuit, verify that the adapter is clean, dry, and
undamaged. Replace if necessary.
CAUTION!
The disposable (SPU) Adult/Pediatric and
Pediatric/Infant airway adapter kits are
intended for single patient use. Do NOT
reuse or sterilize these adapters as system
performance will be compromised.
1. Attach the airway adapter kit’s sample cell to the
sample cell receptacle on the LoFlo module, and
ensure that it clicks into place.
2. If the unit displays either of the following messages
take the appropriate action.
3. Place the airway adapter assembly at the proximal
end of the airway circuit between the elbow and the
ventilator circuit wye. Do NOT place the airway
adapter between the ET tube and the elbow as this
may allow patient secretions to accumulate in the
adapter.
If pooling does occur, the airway adapter may be
removed from the circuit, rinsed with water and
reinserted into the circuit. To prevent moisture from
draining into the sample tubing, ensure that the
sampling tube exits from the top of the airway
adapter, not its bottom or sides. See Figure 5.
4. Check that connections have been made correctly by
verifying the presence of a proper capnogram on the
M Series display.
Applying a Nasal or Nasal/Oral Cannula
The nasal and nasal/oral cannulae are intended for
monitoring EtCO
2
in non-intubated patients.
Oral/nasal sampling cannulae should be used on
patients who are prone to mouth breathing, since most (if
not all) of the CO
2
is exhaled through the mouth. If a
If you see this
message:
Take this action:
CHECK CO2
LINE
Verify that the sample cell is plugged
into the module and seated properly.
Verify that neither the sample line nor
the exhaust tube are blocked, kinked,
or pinched. Verify that the airway
adapter is not blocked. If the sample
line, exhaust tube, or the airway
adapter is blocked or otherwise
compromised, the pump shuts off in
approximately 15 seconds. To restart
the pump, correct the blockage, then
remove and reinsert the sample cell
into the sample cell receptacle.
If the problem persists, replace the
sample line.
CHECK CO2
MODULE
Check that module cable is plugged in
and seated properly.
Check that module is not exposed to
excessive heat.
If problem persists, replace module.
Figure 5
Sampling Tube