Manual

MONITORING
4
©2007-2013 Physio-Control, Inc. LIFEPAK 15 Monitor/Defibrillator Operating Instructions 4-59
No waveform.
No pressure reading.
Transducer closed to
patient
• Check patient. Check
stopcock positions and
monitor setup.
Defibrillator shock just
delivered
• None.
Invasive BP lower than cuff BP Transducer level higher
than the heart
• Reposition transducer to
correct height.
Loose connection • Tighten all connections.
Thrombus formation, air
bubbles, or blood in
catheter, kinking, or
arteriospasm
• Use syringe to draw back air or
particles in catheter, and then
flush system.
Improper zero reference • Open stopcock to air and
rezero transducer.
Defective transducer • Replace transducer.
Invasive BP higher than cuff BP Transducer level lower than
the heart
• Reposition transducer to
correct height.
Improper zero reference • Rezero.
Catheter whip artifact • Change catheter tip position.
• Use mean pressure values
(mean pressure is less
affected by extremes and will
therefore reflect a more
accurate reading).
Inability to flush system Pressure bag leaking • Keep positive pressure in
flush bag at all times.
• Remove dressing to check for
external kinking.
Partially kinked or
obstructed catheter
• Replace catheter, if clotted.
Inability to zero system Stopcock not open to air or
defective
• Check stopcock position.
Replace any defective
stopcocks.
Defective transducer • Replace transducer.
System has been zeroed but
continues to indicate zero
reference required
Steps to zero system
performed in wrong order
• Close stopcock to air before
placing cap on port.
Table 4-8 Troubleshooting Tips for IP Monitoring (Continued)
OBSERVATION POSSIBLE CAUSE CORRECTIVE ACTION