Rad-57 Signal Extraction Pulse CO-Oximeter Operator’s Manual
4-5
4
O p e r a t i o n
S u c c e s s f u l S p O
2
M o n i t o r i n g
The following general points will aid in ensuring oximetry monitoring success.
■
Place the sensor on a site that is not too thick, has sufficient perfusion and provides proper
alignment of the LED’s and photodetector.
■
Place the sensor on a site that has unrestricted blood flow
■
Do not secure a sensor with tape
■
Do not select a site near potential electrical interference (electrosurgical unit, for example)
■
Read the sensor's
Directions for Use
for proper sensor application
Masimo Sensors
Before use, carefully read the sensor
's
Directions for Use
.
Tissue damage can be caused by incorrect application or use of a sensor, for example by wrapping
the sensor too tightly. Inspect the sensor site as directed in the sensor
's
Directions for Use
to ensure
skin integrity and correct positioning and adhesion of the sensor.
CAUTIONS
DO NOT USE DAMAGED SENSORS. DO NOT USE A
SENSOR WITH EXPOSED
OPTICAL OR ELECTRICAL COMPONENTS. DO NOT IMMERSE THE SENSOR IN WATER,
SOLVENTS, OR CLEANING SOLUTIONS (THE SENSORS AND CONNECTORS ARE
NOT WATERPROOF). DO NOT STERILIZE BY IRRADIATION, STEAM, AUTOCLAVE OR
ETHYLENE OXIDE (UNLESS OTHERWISE INDICATED ON THE SENSOR
'S
DIRECTIONS
FOR USE). SEE THE CLEANING INSTRUCTIONS IN THE
DIRECTIONS FOR USE.
DO NOT USE DAMAGED PATIENT CABLES. DO NOT IMMERSE THE PATIENT CABLES IN
WATER, SOLVENTS, OR CLEANING SOLUTIONS (THE PATIENT CABLE CONNECTORS
ARE NOT WATERPROOF). DO NOT STERILIZE BY IRRADIATION, STEAM, AUTOCLAVE
OR ETHYLENE OXIDE.
DO NOT ATTEMPT TO REPROCESS, RECONDITION OR RECYCLE MASIMO
SENSORS OR PATIENT CABLES AS THESE PROCESSES MAY DAMAGE THE
ELECTRICAL COMPONENTS, POTENTIALLY LEADING TO PATIENT HARM.
Numeric Display - SpO2
Stability of the SpO
2
readings may be a good indicator of signal validity. Although stability is a
relative term, experience will provide a good feeling for changes that are artifactual or physiological
and the speed, timing, and behavior of each. The stability of the readings over time is affected by
the averaging mode being used. The longer the averaging time, the more stable the readings tend
to become. This is due to a dampened response as the signal is averaged over a longer period of
time than during shorter averaging times. However, longer averaging times delay the response of the
oximeter and reduce the measured variations of SpO
2
and PR. Inaccurate measurements may be
caused by
■
Elevated levels of carboxyhemoglobin
■
Elevated levels of methemoglobin
■
Intravascular dyes such as indocyanine green or methylene blue
Summary of Contents for Rad-57
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