Pulse Oximetry (Spo ) - GE B20 User Manual

Pulse oximetry (SpO
Safety precautions
Warnings
• Allow sensor and cable to dry completely after cleaning.
Moisture and dirt on the connector can affect the measurement
accuracy.
• To prevent erroneous readings, do not use physically damaged
sensors, cables or modules. Discard a damaged sensor or cable
immediately. Never repair a damaged sensor or cable; never use
a sensor or cable repaired by others. A damaged sensor or a
sensor soaked in liquid may cause burns during electrosurgery.
• Inaccurate SpO data can result if a sensor is past its useful life.
2
Therefore, re-evaluate the measurement periodically by
performing additional assessment of the patient and equipment,
including consideration of use of alternate monitoring methods
such as direct measurement of arterial oxyhemoglobin
saturation (SaO ).
2
• Conditions that may cause inaccurate readings and impact
alarms include interfering substances, excessive ambient light,
electrical interference, ventricular septal defects (VSD), excessive
motion, low perfusion, low signal strength, incorrect sensor
placement, poor sensor fit, and/or movement of the sensor on
the patient.
• Physiological characteristics of the patient can affect the SpO
signal and readings.
• NEONATAL - The display of inaccurate pulse oximetry (SpO
values has been linked to the presence of poor signal strength or
artifact due to patient motion during signal analysis. This
condition is most likely to be encountered when the monitor is
)
2
used on neonates or infants. These same conditions in adults do
not impact the SpO
We recommend the application of the following criteria when
using the pulse oximetry function on neonates and infants:
−
The peripheral pulse rate (PPR) as determined by the SpO
function must be within 10% of the heart rate, and
−
The SpO
indicated by the display of two or three asterisks or the
absence of a Low Signal Quality message.
Procedures or devices previously applied in your facility for SpO
monitoring should be used in the event the SpO
monitor cannot be validated by the above criteria.
• If the accuracy of any measurement does not seem reasonable,
first check the patient's vital signs, then check for conditions that
may cause inaccurate SpO
resolved, check the SpO
functioning.
• Oximetry performance may be impaired when patient perfusion
is low or signal attenuation is high.
• The operator is responsible for checking the compatibility of the
pulse oximetry monitor, sensor, and patient cable prior to use.
Incompatible components can result in degraded performance
and/or device malfunction.
• SpO readings may be inaccurate for a short time after
2
2
defibrillation.
)
• Change the sensor site immediately if there is evidence of
2
blistering, skin erosion, or ischemic skin necrosis (such as skin
discoloration or reddening). Otherwise, change the site every
four hours.
• A pulse oximeter should not be used as an apnea monitor.
83
values to the same extent.
2
signal strength should be adequate. This is
2
readings. If the problem is still not
2
module or sensor for proper
2
2
2
value from the
2