Mindray VS 8A, Operator'S Manual

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8 - 2
8.2 SpO
2
Safety Information
WARNING
•
When a trend toward patient deoxygenation is indicated, analyze the blood
samples with 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 causes burns. The sensor may affect the MRI image,
and the MRI unit may affect the accuracy of the oximetry measurements.
•
Prolonged continuous monitoring may increase the risk of undesirable
changes in skin characteristics, such as irritation, reddening, blistering or
burns. Inspect the sensor site every two hours and move the sensor if the skin
quality changes. Change the application site every four hours. For neonates,
or patients with poor peripheral blood circulation or sensitive skin, inspect
the sensor site more frequently.
•
If the sensor is too tight because the application site is too large or becomes
too large due to edema, excessive pressure for prolonged periods may result
in venous congestion distal from the application site, leading to interstitial
edema and tissue ischemia.
•
When patients are undergoing photodynamic therapy they may be sensitive
to light sources. Pulse oximetry may be used only under careful clinical
supervision for short time periods to minimize interference with
photodynamic therapy.
•
Setting alarm limits to extreme values may cause the alarm system to
become ineffective. For example, high oxygen levels may predispose a
premature infant to retrolental fibroplasia. If this is a consideration, do not
set the high alarm limit to 100%, which is equivalent to switching off the
alarm.
•
SpO
2
is empirically calibrated in healthy adult volunteers with normal levels
of carboxyhemoglobin (COHb) and methemoglobin (MetHb).
•
To protect from electric shock, always remove the sensor before bathing the
patient.
•
The pulse oximetry function of the bedside monitor should not be used for
apnea monitoring.
•
The pulse oximetry function of the bedside monitor should not be used for
arrhythmia analysis.