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I put together these medical challenges. The cases are hypothetical and do not necessarily represent actual or typical presentations of medical diseases. Disclaimer is at the bottom of this page.
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3 comments:
I would guess about 75% O2 Sat, this depends on the ratio of oxygenated and de-oxygenated blood in the v.cava / right atrium
this is an artificially created extra-corporal circulation device for oxygenation. looks similar to a heart lung machine, but those inject the oxygenataed blood into the arterial bloodstream.
extracorporeal membrane oxygenation (ECMO) is the correct terminology
And here they discuss values around 99%
http://www.ncbi.nlm.nih.gov/pubmed/24303601
yes! nice job. this is definitely ECMO - but the cannula show VV-ECMO rather than VA-ECMO. In VV-ECMO, your sat is 75-85% due to mixing and shunt. In VA ECMO, your sat will be higher.
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Advanced Circulatory Support II
This is venovenous extracorporeal membrane oxygenation. Blood is withdrawn from the IVC (from a femoral vein cannula), circulated through an artificial membrane, and returned via the SVC to the RA. When there is no native lung function, arterial saturation is 75-85%.
Source: UpToDate.
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