User's Manual

Monitoring SpO2 (Optional) Safety
TMS60 Operator’s Manual 8 - 3
■ Dysfunctional hemoglobin, such as carboxyhemoglobin (COHb) and
methemoglobin (MetHb)
■ Presence of certain dyes, such as methylene and indigo carmine
■ Inappropriate positioning of the SpO
2
sensor, or use of incorrect SpO
2
sensor
■ Drop of arterial blood flow to immeaurable level caused by shock, anemia, low
temperature or vasoconstrictor.
■ Inaccurate measurements may be caused by venous pulsations.
■ Placement of a sensor on an extremity that has a blood pressure cuff, arterial
catheter, or intra-vascular line.
■ Loss of pulse signal can occur when the sensor is too tight.
■ Loss of pulse signal can occur when there is arterial occlusion proximal to the
sensor.
8.3 Safety
WARNING
• Only use SpO
2
sensors specified in this manual. Follow the SpO
2
sensor’s
instructions for use and adhere to all warnings and cautions.
• 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.
• When a trend toward patient deoxygenation is indicated, blood samples
should be analyzed by a laboratory co-oximeter to completely
understand the patient’s condition.
• Do not use SpO
2
sensors during magnetic resonance imaging (MRI).
Induced current could potentially cause burns. The sensor may affect
the MRI image, and the MRI unit may affect the accuracy of the oximetry
measurements.
• Prolonged and continuous monitoring may increase the temperature of
the sensor and cause the patient discomfort. It is especially important to
check the sensor placement, and ensure proper attachment on patients
suffering from poor perfusion or skin sensitivity. Check the sensor
location every two to three hours and move to another location if the
skin deteriorates. More frequent examinations may be required for
different patients.