Welch Allyn 1500 Patient Monitor v.1.3.X - User Manual - Manual (Page 75)

Directions for use Monitoring and Measurements 71
SpO
2
messages
Message Possible cause Suggested action
SpO
2
– check sensor Defective SpO
2
sensor Replace the sensor.
Incorrect settings in the monitor Check the monitor settings.
SpO
2
– check sensor
placement
Poor sensor contact or the
sensor has fallen off Check the contact between the sensor and
the patient.
Sensor is disturbed by ambient
light Cover the sensor.
Sensor defective (red light on
the sensor is not lit) Replace the sensor.
SpO
2
Low Perfusion
1
1. When the monitor has a Masimo module, the message SpO2 low perfusion only occurs when the perfusion index
feature is enabled.
Sensor not properly applied Check the sensor and reapply.
Fingernail varnish on the finger Remove fingernail varnish.
Thick skin Change finger.
Sensor failed Change sensor.
Weak Signal see SpO
2
Low Perfusion above see SpO
2
Low Perfusion above.
SpO
2
unplugged SpO
2
not connected to the
monitor
Connect sensor.
SpO
2
artifact Patient has moved Calm the patient.
Hemodynamic interference Apply sensor to another extremity.
Too thin skin Apply sensor to a larger finger.
SpO
2
< [lower limit] SpO
2
too low Check the patient and alarm limits.
SpO
2
> [upper limit] SpO
2
too high Check the patient and alarm limits.
SpO2 low signal IQ 2
2. The SpO2 low signal IQ message is only given when the monitor has a Masimo module and only occurs if Signal IQ
waveform feature is enabled.
Poor quality signal Check the sensor and reapply. Move sensor
to obtain a better quality signal.
PR < [lower limit] Pulse rate too low Check the patient and alarm limits.
PR > [upper limit] Pulse rate too high Check the patient and alarm limits.