Foreword, When fi nger nails are polished – Konica Minolta PULSOX 300 User Manual

Page 11

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9

Foreword

Difference from the SaO

2

value to displayed value

<Table 1>

<Table 2>

SaO

2

HbCO

SaO

2

Methemoglobin

1%

5%

10%

1%

5%

10%

50

50

70

70

90

90

100

100

Measured value is always
lower than the actual value.

Displayed value is sometimes
higher than the actual value if

SaO

2

is around 50%.

-0.1

-0.7

-1.5

+0.2

+1.3

+3.2

-0.2

-0.8

-1.6

-1.5

-6.0

-9.6

-0.1

-0.7

-1.5

-0.6

-2.3

-3.2

-0.2

-0.8

-1.7

-1.8

-7.5

-12.2

•

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.

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