Dräger Primus - Tips to prevent artefacts

Monitoring
@ Select the appropriate sensor.
At the back of the workstation:
1 Plug the sensor connector into the socket marked »SpO2«.
Tips to prevent artefacts
Only use Nelicor sensors in the recommended positions,
otherwise incorrect measurements and injury may result.
Damaged sensors with exposed electrical contacts must not
be used - danger of electric shock.
The adhesive strips must not be stretched unduly.
Never use two strips together, as this may lead to venous
pulsation and pulse signal failure.
High intrathoracic pressure, pressure on the thorax and other
consecutive impairments of the venous flow can lead to
venous pulsation and pulse signal failure.
The pulse signal may fail in the presence of shock, low blood
pressure, severe vasoconstriction, major anaemia,
hypothermia, arterial occlusion proxima! to the sensor and
asystolia.
The sensor must be protected from exposure to bright light
(e.g. surgical lamps and direct sunlight), otherwise the pulse
signal may fail or the results may be inaccurate.
The sensor should not be positioned on limbs together with an
arterial catheter, sphygmomanometer cuff or intravascular
venous infusion, otherwise the pulse signal may fail and
measurements may be inaccurate.
Measurement accuracy may be reduced in the presence of
significant concentrations of dyshaemoglobins, such as
carboxyhaemoglobin or methaemoglobin.
Intravascular dyes, such as methylene blue, may also impair
measurement accuracy.
Electrocautery can impair measuring accuracy; the leads and
sensor should therefore be positioned as far away from the
electrocautery and its neutral electrode as possible.
Sensor performance may be impaired and lead to inaccurate
results if the patient moves violently. The sensor should be
applied to a quiet/stable site in such cases in order to reduce
the risk of artefacts due to movement.
The displayed plethysmogram is a relative indicator of the
pulse amplitude. Its scale is not absolute and it is only used to
judge the quality of the SpO2 measurement.
The sensor must not be immersed in liquid — this may lead to
malfunctions.
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Instructions for Use Primus SW 2.n
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