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Chapter 9: SpO2 & Rainbow Parameters Monitoring
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Venous pulsations
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Cabling entanglement or strangulation
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Placement of the sensor on an extremity that has a blood pressure cuff, arterial
catheter, or intravascular line
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Do not use pulse co-oximeter during magnetic resonance imaging (MRI) or in an
MRI environment. Induced current could potentially cause burns.
b) The accuracy of SpCO and SpMet parameters measurement can be affected by:
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Abnormal haemoglobin levels.
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Low arterial oxygen saturation levels including altitude induced hypoxemia.
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Elevated total bilirubin levels.
c) The accuracy of SpHb and SpOC parameters measurement can be affected by:
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Elevated PaO2 levels.
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Low arterial oxygen saturation levels
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Elevated carboxyhemoglobin levels.
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Elevated methemoglobin levels.
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Hemoglobinopathies and synthesis disorders such as thalassemias, Hb s, Hb c, sickle
cell, etc.
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Vasospastic disease such as Raynaud's.
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Elevated altitude.
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Peripheral vascular disease.
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Liver disease.
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EMI radiation interference.
Warning
Interfering Substances: Dyes or any substance containing dyes that change usual blood
pigmentation may cause erroneous readings.
Warning
SpO2, SpCO, SpMet, and SpHb are empirically calibrated in healthy adult volunteers
with normal levels of carboxyhemoglobin (COHb) and methemoglobin (MetHb).
Caution
If SpO2 values indicate hypoxemia, a laboratory blood sample should be taken to
confirm the patient's condition.
9-12
User Manual
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