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Monitoring
4
User guide
CO
2
Sidestream
4.11
A
rt.
no.
: 0-48-
0227
Rev.:
g
DEFIGARD/PHYSIOGARD Touch 7
4.11 CO
2
Sidestream
4.11.1
ISA gas analyser (sidestream measurement)
• ISA sidestream gas analyser is intended to be connected to a patient breathing
circuit for monitoring of inspired/expired gases during anaesthesia, recovery and
respiratory care.
• A correction related to O2 usage is available in the menu setting
EtCO2>Type of
ventilation
. If patient is ventilated with Air and O2, set
Type of ventilation
to =
“
Air + O2
” if ventilated only with air set it to “
Air
”.
The ISA sidestream gas analyzer is intended for use by authorized healthcare
professionals only.
Disposable sampling lines must not be reused. Used sampling lines should be
disposed of in accordance with local regulations for contaminated and
biologically hazardous fluids.
Only use Masimo´s Nomoline sampling lines.
Do only use sample lines intended for anaesthetic agents if N2O and/or
anaesthetic agents are being used.
Make sure to select the correct configuration:
– Do not use T-adapter sampling line configurations for infants because these
will add 7 ml dead space to the patient circuit.
– Do not use the Nomoline Airway Adapter Set Infant with adult/paediatric pa-
tients.
Use only airway T-adapters with the sampling point in the centre of the adapter,
see picture on the left.
Do not use the sampling lines with metered-dose inhalers or nebulized
medications as this may clog the bacteria filter.
The ISA sensor is not intended to be used as the only means of monitoring a
patient.
Excessive positive or negative pressure in the patient circuit (e.g. excessive
scavenging suction pressure) might lead to incorrect readings.
Exhaled gases should be returned to the patient circuit or scavenging system;
do not apply negative pressure to the Nomoline (i.e. by means of a syringe) to
remove condensed water.
Always use a bacteria filter on the evacuation side if sampled gas is intended to
be re-breathed.
Use of high frequency electrosurgical equipment in the vicinity of the ISA sensor
may produce interference and lead to incorrect measurements.
Exhaust gases should be returned to the patient circuit or to a scavenging
system.
The Nomoline sampling line and its interface are non-sterile devices. To avoid
damage, do not autoclave any part of the sampling line.
Do not apply tension to the sensor cable.
Do not operate the device at temperatures outside the specified operating
environment.
Make sure that the ISA sensor is properly secured in order to prevent damages
to the sensor.
The use of a sampling line with an inner diameter of more than 1 mm can lead
to a change in the response and rise time of the CO2 measurement. When the
respiration rate is higher than 130/min, this might lead to a lower etCO2 value
being displayed.
