Page 29
.
Patient Monitoring with the SDMS
CAUTION: A good, hermetically sealed contact between
the sensor and the skin is essential for TC monitoring!
WARNING: Ensure the sensor is applied correctly.
Incorrect application of the sensor can cause incorrect
measurements.
11. Wrap the sensor cable around
the ear once and tape the cable to
the cheek as shown in the picture.
Route the sensor cable properly to
avoid entanglement or strangulation
and secure it with a Clothing Clip to
an appropriate site of the patient’s
clothing or bed linen. Ensure that the
sensor cable is loose enough for not to be stretched during
monitoring. Gently squeeze the sensor and Ear Clip as a final
application check.
12. Verify that the SDM detects that the sensor was placed
on the patient, initiates monitoring and that the enabled
parameters stabilize. If necessary, readjust sensor application
or reposition the sensor.
Note: Typically, PCO
2
increases and PO
2
(if enabled) decreases
to reach a stabilized value within 2 to 10 minutes (p.
30
).
SpO
2
and PR usually stabilize within a few seconds.
Patient Monitoring
‘Sensor-On-Patient’ Detection
Once the sensor is correctly applied to the patient (see previ-
ous sections), the SDM usually detects that the sensor was
put on the patient and initiates monitoring for the enabled
parameters. If the sensor is applied on a site approved for
SpO
2
/PR monitoring (p.
20
), ‘Sensor-On-Patient’ is typical-
ly detected within a few seconds, otherwise within less than
2 minutes.
When obtaining an adequate patient signal is difficult, it may
be possible that the SDM is unable to automatically detect
‘Sensor-On-Patient’. If in this case PCO
2
is enabled, you may
use the ‘Start Monitoring’ function in the ‘Quick Access Menu’
(p.
42
) to activate the ‘Enforced Sensor-On-Patient Mode’
bypassing normal ‘Sensor-On-Patient’ detection. To reset the
SDM to ‘Normal Sensor-On-Patient Mode’ simply insert the
sensor into the Docking Station.
Note: If the ‘Enforced Sensor-On-Patient Mode’ is active, the
SDM’s ‘Sensor-Off-Patient’ detection is disabled, i.e. in this case
no ‘Sensor off patient (
8
)’ alarm will be triggered. There will
be a ‘Check Application’ Alarm instead, triggered within two
minutes, if the sensor is dislodged or intentionally removed
from the patient. If SpO
2
/PR are enabled, SDM’s algorithms
typically will flag the PCO
2
and PO
2
readings to be unstable
(displayed in grey) and the SpO
2
and PR readings to be invalid
(respective values replaced by ‘---’) within 15 seconds and within
30 seconds the low priority alarm ‘SpO
2
signal quality’ will sound.
