Справочник Пользователя для Innokas Yhtyma Oy VC150
KO00065K
VC150 Vital Signs Monitor
8-19
Masimo SpO
2
: Masimo rainbow
®
SET
®
SpO
2
and special features
WARNINGS
SpO
2
is empirically calibrated to functional arterial oxygen saturation in
healthy adult volunteers with normal levels of carboxyhemoglobin
(COHb) and methemoglobin (MetHb). A pulse oximeter cannot measure
elevated levels of COHb or MetHb. Increases in either COHb or MetHb
will affect the accuracy of the SpO
(COHb) and methemoglobin (MetHb). A pulse oximeter cannot measure
elevated levels of COHb or MetHb. Increases in either COHb or MetHb
will affect the accuracy of the SpO
2
measurement.
For increased COHb: COHb levels above normal tend to increase
the level of SpO
the level of SpO
2
. The level of increase is approximately equal to the
amount of COHb that is present.
NOTE! High levels of SpCO may occur with a seemingly normal
SpO
SpO
2
. When elevated levels of SpCO are suspected, laboratory
analysis (CO-oximetry) of a blood sample should be performed.
For increased MetHb: the SpO
2
may be decreased by levels of MetHb of
up to approximately 10% to 15%. At higher levels of MetHb, the SpO
2
may tend to read in the low to mid 80s. When elevated levels of MetHb
are suspected, laboratory analysis (CO-oximetry of a blood sample
should be performed.
are suspected, laboratory analysis (CO-oximetry of a blood sample
should be performed.
Interfering substances: Dyes, or any substance containing dyes, that
change usual blood pigmentation may cause erroneous readings.
change usual blood pigmentation may cause erroneous readings.
Hemoglobin synthesis disorders may cause erroneous SpHb readings.
Elevated levels of total bilirubin may lead to inaccurate SpO
2
, SpMet,
SpCO, SpHb, and SpOC measurements.
Motion artifact may lead to inaccurate SpMet, SpCO, SpHb, SpOC
measurements.
measurements.
Severe anemia may cause erroneous SpO
2
readings.
Very low arterial oxygen saturation (SpO
2
) levels may cause inaccurate
SpCO and SpMet measurements.
With very low perfusion at the monitored site, readings may read lower
than core arterial oxygen saturation.
than core arterial oxygen saturation.
Do not use tape to secure the sensor to the site; this can restrict blood
flow and cause inaccurate readings. Use of additional tape can cause
skin damage or damage the sensor.
flow and cause inaccurate readings. Use of additional tape can cause
skin damage or damage the sensor.
If the sensor is wrapped too tightly or supplemental tape is used,
venous congestion/pulsations may occur, causing erroneous readings.
venous congestion/pulsations may occur, causing erroneous readings.
Venous congestion may cause under reading of actual arterial oxygen
saturation. Therefore, assure proper venous outflow from the monitored
site. Sensor should not be below heart level (e.g. sensor on hand of a
patient in bed with arm dangling to the floor).
saturation. Therefore, assure proper venous outflow from the monitored
site. Sensor should not be below heart level (e.g. sensor on hand of a
patient in bed with arm dangling to the floor).
Venous pulsations may cause erroneous readings (e.g. tricuspid valve
regurgitation).
regurgitation).