Edwards HemoSphere

188
HemoSphere Advanced Monitor 13 Troubleshooting
13.7.2 Oximetry Warnings
13.7.3 Oximetry General Troubleshooting
Table 13-21 Oximetry warnings
Message Possible causes Suggested actions
In vitro Calibration Error Poor oximetry cable and catheter ScvO
2
/
SvO
2
connection
Calibration cup wet
Catheter kinked or damaged
Oximetry cable malfunction
Catheter tip is not in catheter calibration
cup
Verify secure oximetry cable /catheter connection
Straighten any visible kinks; replace catheter if damage is
suspected
Change oximetry cable and recalibrate
Verify catheter tip is securely seated in calibration cup
Perform in vivo calibration
Warning: Unstable Signal Changing ScvO
2
/SvO
2
, HGB/Hct, or
unusual hemodynamic values
Stabilize patient per hospital protocol and perform in vivo
calibration
Warning: Wall Artifact or Wedge
Detected
Low blood flow at catheter tip
Catheter tip clotted
Catheter tip wedged in vessel or against
vessel wall
Aspirate then flush distal lumen per hospital protocol.
Verify proper catheter position (for SvO
2
, verify proper
catheter position in the pulmonary artery):
• confirm wedge pressure balloon inflation volume of
1.25-1.50 ml (For SvO
2
only)
• confirm appropriate catheter placement for patient's
height, weight, and insertion site
• consider chest x-ray for evaluation of proper place-
ment
Perform in vivo calibration.
Table 13-22 Oximetry general troubleshooting
Message Possible causes Suggested actions
Oximetry Cable Not Calibrated
— Select Oximetry to Calibrate
Oximetry cable has not been calibrated (in
vivo or in vitro)
Recall oximetry data function has not been
performed
Oximetry cable malfunction
Run in-vitro calibration
Run in-vivo calibration
Recall calibration values
Patient data in oximetry cable
more than 24 hours old —
Recalibrate
Last oximetry cable calibration >24 hours
old
Date and time on Edwards’ monitors at
facility differ
Perform in vivo calibration
Synchronize date and time on all Edwards’ monitors at
facility
Connect oximetry cable for
oximetry monitoring
Oximetry cable connection at
HemoSphere monitoring platform not
detected
Bent or missing oximetry cable connector
pins
Verify secure oximetry cable connection
Check oximetry cable connector for bent/missing pins
Status = Released Printed Date: 2018-01-16 Released Date: 2017-09-14