Follow the tips below to get the most accurate pulse oximetry results.
Be seated comfortably for 5 minutes prior to taking your measurement.
Make sure your hands are clean and free from any residue eg. dried blood, dirt, grease, oil, etc.
Remove any artificial nails or fingernail polish.
The device may not work if circulation is reduced. If your hands are cold, rub them together for a few minutes or run them under a warm tap.
Make sure your finger is centred within the finger guide and flat as shown below.
For best results, keep the device at heart or chest level.
While on the finger, do not press the device against any surface and do not squeeze or apply extra pressure.
The displayed values can vary slightly especially at the start. Wait about 5 seconds before relying on the displayed values.
Keep the pulse oximeter away from excessive light, such as sunlight or direct home lighting.
When the device is on your finger, avoid excessive motion as this can affect the accuracy of your results.
Keep the oximeter dry at all times.
Do not sterilise or immerse the device in liquid.
Please note: Poor circulation and conditions such as Raynaud's disease can greatly reduce the accuracy of your results. If you have a condition that affects your blood flow, please let your clinician know as the Nonin 3230 Pulse Oximeter device may not be suitable for you.
