User's Manual

Rad-87 Pulse CO-Oximeter Operator’s Manual
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Numeric Display - SpMet
A stable SpMet reading is associated with correct sensor placement, small physiological changes
during the measurement and acceptable levels of arterial perfusion in the patient’s measurement
site. Physiological changes at the measurement site are mainly caused by fluctuations in the
arterial oxygen saturation, blood concentration and perfusion. Inaccurate measurements may
be caused by:
■ Intravascular dyes such as indocyanine green or methylene blue.
■ Low arterial perfusion.
■ L
ow arterial oxygen saturation levels.
■ Elevated Total Bilirubin levels.
■ Motion artifact.
Numeric Display - SpHb
A stable SpHb reading is associated with correct sensor placement, small physiological changes
during the measurement and acceptable levels of arterial perfusion at the measurement site.
Physiological changes at the measurement site are mainly caused by fluctuations in the arterial
oxygen saturation, blood concentration and perfusion. Inaccurate measurements may be caused by:
■ Intravascular dyes such as indocyanine green or methylene blue.
■ Low arterial perfusion.
■ Low arterial oxygen saturation levels.
■ Elevated Total Bilirubin levels.
■ Motion artif
act.
Numeric Display - SpOC
A stable SpOC reading is associated with stable readings for both SpO
2
and SpHb which
comes with correct sensor placement, small physiological changes during the measurement
and acceptable levels of arterial perfusion at the measurement site. Physiological changes
at the measurement site are mainly caused by fluctuations in the oxygen saturation, blood
concentration and perfusion. Inaccurate measurements may be caused by:
■ Intravascular dyes such as indocyanine green or methylene blue.
■ Low arterial perfusion.
■ Low arterial oxygen saturation levels.
■ Elevated Total Bilirubin levels.
■ Motion artifact.
■ Elevated levels of carboxyhemoglobin.
■ Elevated levels of methemoglobin.
■ Severe anemia may cause erroneous SpOC readings.
Numeric Display - PI
The perfusion index (PI) display and bar graph indicator provide a relative numeric indication of
the pulse strength at the monitoring site. It is a calculated percentage between the pulsatile signal
and non-pulsatile signal of arterial blood moving through the site. PI may be used to find the best
perfused site and to monitor physiological changes in the patient. It displays an operating range of
0.02 percent to 20.00 percent. A percentage greater than 1.00 percent is desired. Extreme changes
in the display number are due to motion artifact and changes in physiology and blood flow.
Operation