ICU Vivas · ECMO
Data viva — the ECMO circuit parameters and the blood gas
A data viva on the ECMO monitoring — the flow, the sweep gas, the pre- and post-membrane gas, the delta pressure, the anticoagulation, and the interpretation.
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CICMFFICMEDIC
Prompt
The ECMO circuit parameters and the blood gas of a patient on the VV ECMO, to be interpreted.
Stimulus
You are shown the parameters of a patient on the VV ECMO (day 5, severe ARDS):
| Parameter | Value |
|---|---|
| ECMO blood flow | 4.5 L/min |
| Sweep gas flow | 5 L/min (FiO2 1.0) |
| Pre-membrane PaO2 | 45 mmHg (venous) |
| Post-membrane PaO2 | 350 mmHg |
| Delta membrane pressure | 55 mmHg (normal under 50) |
| ACT | 1.4 x baseline |
| Arterial PaO2 | 75 mmHg |
| Plasma free Hb | 120 mg/L (normal under 40) |
| Platelets | 85 x 10^9/L |
Interpret.[1]
References1ShowHide
- [1]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.