User's Manual

20-14
SvO
2
Troubleshooting Guide
Clinical Situation Possible Cause Solution
INTENSITY ALERT or
SVO2 DATA OUT OF
RANGE message is
displayed
■ Faulty catheter position within vessel. ■ Check for spontaneous wedge or
balloon inflation; if present reposition
the catheter.
■ Clot over catheter tip. ■ Flush distal lumen.
■ Loose connections between catheter
optical connector and optical module.
■ Tighten the connections.
■ Kinked or damaged fiber optics in
catheter.
■ Replace the catheter.
INSUFFICIENT LIGHT
message is displayed
■ Catheter exposed to room light
during pre-insertion calibration.
■ No action required; status message
only.
■ Catheter is kinked. ■ Check the catheter.
■ Faulty connection between catheter
and optical module.
■ Fully insert the tip into the optical
reference.
CALIBRATION REJECTED
message is displayed
■ Faulty connection between catheter
and optical module.
■ Reconnect.
■ Optical module not warmed up. ■ Wait one minute and retry.
??? is displayed in place
of Sv
O
2
value
■ Value out of range. ■ If optical module error message also
is displayed, replace optical module.
■ Poor light intensity. ■ Display light intensity history to
verify.
■ Pre-insertion calibration insufficient. ■ Perform in vivo calibration.
!
• Catheters should be handled according to your hospital’s protocol.