Measurement Limitations; Summary Of Spo2 & Pulse Rate Accuracy Testing - CONCORD 75023 Operator's Manual

75023
multiple notices of different levels occur simultaneously, the
NOTE:When
pulse oximeter will select the notice of the highest level and give visual
and audible notice indications accordingly.

5.6 Measurement Limitations

If you d oubt the S pO 2 measurements, check the person's vital s i g n s
fi rst. Then check the pulse oximeter and S p O2 sen sor. The fol l owi n g
factors may i n fluence the accuracy o f measurements:
• Ambient light
• Physical movement (person or imposed motion)
• Diagnostic testing
• Low perfusion
• Electromagnetic interference, such as MRI environment
• Electrosurgical units
• Dysfunctional haemoglobin, such as carboxyhemoglobin (COHb) and
methemoglobin (MetHb)
• Presence of certain dyes, such as methylene and indigo carmine
• Inappropriate positioning of the SpO2 sensor, or use of incorrect SpO2
• Drop of arterial blood flow to unmeaurable level due to shock, anemia, low
temperature or vasoconstrictor.
6 Summary of Spo2 & Pulse Rate Accuracy Testing
1 ) Accord i n g to I S O8060 1 -2 -6 1 , the 300 data pai rs ( S P 0 2 VS Sa02)
were obtai ned throughout the hypoxia b reathe-d own trials i n all 1 2
volunteers. The S p O 2 accuracy s pecifi cation i n the range of 7 0 % to
1 0 0 %, 70% to 8 0 % , 80% to 90%, and 90% to 1 0 0 % i s as the
fol l ow i n g table:
Pulse SPO2
Oximeter Sensor 1 00%-70% 1 1 00% - 90%
75023 U403-01
2 ) The data from the hypoxia b reathe-d own trials for each of the 1 2
volu n teers i s summari zed i n F i g u res 1 &2 :
Copyright. Concord Health Supply. Inc.
I
1 .391 0 1 .2555
SpO2 Range
I
90% - 80%
I
1 .3774
I
80% - 70%
I
1 .568 7
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