Escort Prism 20401 Reference Manual page 145

NO SENSOR is displayed.
Invasive Blood Pressure Solutions
Problem
Will not zero - ZERO OUT OF
RANGE displays.
Will not zero - NO ZERO:
PULSE DETECT displays.
Pressure values lower than
expected.
Pressure values higher than
expected.
Noninvasive Blood Pressure Solutions
Problem
CHECK CUFF message.
ARTIFACT message.
LOW OSCIL message.
NIBP pump turns on and off
during inflation.
Inaccurate NIBP readings.
MAX 2 LOW message.
Sensor not connected.
Damaged Sensor or cable.
Unknown sensor connected.
Possible Causes
Faulty transducer or transducer
not zeroed.
Monitor has detected a pulse.
Dampened waveform from
bubbles in line.
Transducer was repositioned
after zeroing was completed.
Excessive tubing length causing
resonance.
Possible Causes
Poor connection to monitor or
cuff.
Cuff or hose assembly is
leaking.
Cuff is loose on patient.
Too much patient movement.
Pulse detected too low due to
improper placement or tightness
of cuff.
Monitor is set to PED or NEO
mode.
Improper cuff placement or size.
Monitor did not obtain valid
systolic reading.
10-3
Check sensor connections.
Verify red light on sensor
illuminates. Replace cable if
necessary.
Replace with Masimo sensor.
Action/Solution
Try new transducer or rezero
current transducer.
Open stopcock on transducer to
air and rezero.
Flush line.
Rezero transducer.
Reduce tubing length and rezero
transducer.
Action/Solution
Verify NIBP assembly is
connected.
Check cuff and hose for leaks.
Make sure cuff is correct size
and snug.
Reduce patient movement and
retake reading.
Make sure cuff is positioned
correctly and snug on patient.
If monitoring an adult patient,
switch to ADULT mode,
otherwise this behavior is
acceptable.
Check proper cuff placement or
size.
Retry reading. Note:
subsequent inflations are 25
mmHg higher.