Table of Contents
Advertisement
When influenced by abnormal hemoglobin like carbon
•
monoxide hemoglobin (HbCO) and methemoglobin
When pigments such as cardiogreen, intravascular dyes
•
and indocyanine greenare present in the blood
When fi nger nails are polished
When fi nger nails are polished
•
Tables 1 and 2 below show the errors which may occur due to
•
these hemoglobins.
Difference from the SaO
<Table 1>
SaO
2
50
-0.1
70
-0.1
90
-0.2
100
-0.2
Measured value is always
lower than the actual value.
Get other manuals https://www.bkmanuals.com
HbCO
1%
5%
10%
-0.7
-1.5
-0.7
-1.5
-0.8
-1.6
-0.8
-1.7
value to displayed value
2
<Table 2>
Methemoglobin
SaO
2
1%
50
+0.2
70
-0.6
90
-1.5
100
-1.8
Displayed value is sometimes
higher than the actual value if
SaO
is around 50%.
2
5%
10%
+1.3
+3.2
-2.3
-3.2
-6.0
-9.6
-7.5
-12.2
9
Advertisement
Table of Contents
