Flow probe sensor, ecmo coordinator, reported that they had a 1/4" flow probe that was reading about half of the actual flow.The flow probe fs2000138 was the arterial flow probe, and the entire case it was reading around.200 lpm, which was the target flow they also had a venous flow probe (measured pre-shunt so this
should be very close to the art flow) and an "alt flow" probe (shunt flow).An ecmo specialist eventually noticed the discrepancy between art and ven flows (no alarms set or charting of ven and alt routinely).They did some trouble shooting by attaching all flow probes to the arterial line, and the art flow was reading about half of what the other two flow probes were reading.They then replaced fs2000138 with a new flow probe, and this was reading the same as the venous flow probe.The specialist that set up the pump reported zeroing all flows before the case.They did not zero the replacement flow probe because they were on support.
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