User's Manual

Radical-7 Safety Information, Warnings, and Cautions
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Warning
Inaccurate SpHb and SpOC readings may be caused by:
• Intravascular dyes such as indocyanine green or methylene blue
• Externally applied coloring and texture such as nail polish, acrylic
nails, glitter, etc.
• Elevated levels of bilirubin
• Low arterial perfusion
• Motion artifact
• Low arterial oxygen saturation levels
• Elevated carboxyhemoglobin levels
• Elevated methemoglobin levels
• Difference between patient's finger skin and finger core temperature
• Hemoglobin synthesis disorders
• Hemoglobinopathies and synthesis disorders such as thalassemias,
Hb s, Hb c, sickle cell, etc.
• Vasospastic disease such as Raynaud's
• Elevated altitude
• Peripheral vascular disease
• Liver disease
• EMI radiation interference
Warning
Inaccurate SpCO and SpMet readings can be caused by:
• Intravascular dyes such as indocyanine green or methylene blue
• Abnormal hemoglobin levels
• Low arterial perfusion
• Low arterial oxygen saturation levels including altitude induced
hypoxemia
• Elevated total bilirubin levels
• Motion artifact
• SpCO readings may not be provided if SpO2 readings are less than
90%
• SpCO readings may not be provided if SpMet readings are greater
than 2%
Inaccurate SpCO readings can be caused by:
• Levels of methemoglobin approximately 1.5% or above