Step 1b: Calibration
It may take a couple of sessions to allow you to fine tune your device to your physiology. The device can be calibrated for both chamber volume
and flow rate.
Chamber volume
If you find that your SPO2 is dropping too rapidly and continues to drop below 80% then your chamber volume has been set too large. Calibrate
your device by removing one piece of foam at a time until you are able to stabilise your SPO2 between 80-85%. If your SPO2 drops too slowly
add some foam discs to the device.
Flow rate
You should not find increased levels of resistance in breathing when using the device. If breathing is too laboured then increase flow rate by
removing one plug at a time from the chamber house adjustment plate. Start the calibration by removing one plug at a time until you find the
correct flow rate for your set chamber volume.
Step 2: Getting Ready
• Sit comfortably.
• Attach the nose clip and the pulse oximeter to your index finger.
• Wait for one minute until oximeter reading stabilises.
• Make sure your hands/fingers are warm and relaxed.
• Contracting your arms/fingers and cold temperatures may affect the reading (reducing the PI, see below).
• Percentage perfusion index (PI) is the signal strength of the pulse that the oximeter is receiving. This ranges from 2-20. 20 is a
strong signal. If PI drops below 4% then you should not use the Altium i10 until you have a stronger signal.
• If the oximeter does not switch on replace batteries.
• Only use the Bluetooth oximeter as supplied with the Altium i10.
Step 3: SPO2%
• Resting SPO2% should be 98-99% at rest, breathing normal air.
• Check SPO2%, heart rate and %PI continuously.
• SPO2% is a non-invasive measure of arterial oxygen saturation.
• SPO2% will drop gradually when breathing into the Altium-i10.
• SPO2% will drop into the hypoxic region (between 92% and 80% )
• This may occur within 15 seconds to two minutes of use.
• If SPO2 drops below 80%, come off the Altium-i10 and breathe normal air.
• Do not breathe into the Altium i10 if SPO2% drops below 80%.
• SPO2% will rise towards 99% when breathing normal air.
• SPO2% can be stabilised in the hypoxic zone (80%-92%)
by removing some foam discs before use or regulating (taking a deeper breath).
There are no additional benefits from lowering your SPO2% below 80%
Symbol of oxygen
saturation
Measured value of
oxygen saturation
Bar graph
Visualisation of pulse
Measured value of
Pulse rate
PI
Symbol of pulse rate
Battery power indication/Bluetooth symbol (alternately displayed)
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