V Series Operating Instructions 18 - 11
Cardiac Output (CO) (Optional) CO Troubleshooting
Irregular curve Improper injection procedure. Check hospital policy, inject in a
smooth and fluid bolus.
Catheter may be kinked or not in proper
position.
Notify physician.
Patient movement during injection. Have patient lay still during bolus
procedure.
Measurement displayed if CO curve has
multiple peaks, failure to return to baseline
or irregularities in curve.
Rebolus when ready
Delayed Injection Appears if the time between the start of the
CO measurement and the onset of the
temperature change is more than fifteen
(15) seconds
Rebolus when ready.
Ensure that the CO bolus is
initiated within 15 seconds
Check the temperature of the
injectate
Injectate Temp Error Appears when the temperature of the
injectate is too warm (>27ºC) or the
difference between the injectate and the
blood temperature is <8ºC.
Check injectate fluid, insure fluid is
not under warm lights, near a
warming blanket or another
warm source.
Noisy Baseline Cardiac Output waveform baseline is
unstable.
Rebolus when ready.
Measuring Displays once an injection is detected
during the process of a CO run.
Wait until measurement
completes before continuing.
Injectate Temp. Out
of Range
Displays when the temperature of the
injectate is too warm (>27ºC) or the
difference between the injectate and the
blood temperature is <8ºC.
Check injectate fluid, insure fluid is
not under warm lights, near a
warming blanket or over-chilled
in the ice bath.
Inject When Ready Displays if Auto Start is enabled, stable
temperatures are detected
Bolus when ready.
Ready Displays if Auto Start is not enabled, and
stable temperatures are detected
Press Start CO when ready.
Inject Now Displays once Start CO has been pressed,
before bolus is initiated
Bolus when ready.
Please Wait Displays after fluid bolus is initiated and
Cardiac Output is being calculated
Wait until message disappears.
MESSAGE/PROBLEM REASON SOLUTION
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