Simple estimate of the true right to left shunt (Qs/Qt) at maintenance F1O2 by Sulphur Hexafluoride retention


Differentiating Qs/Qt over Qva/Q (as measured by the standard O2 content formula) appears to be of great interest in applying and evaluating different therapeutic approaches. The estimation of Qs/Qt by 100% O2 breathing may alter “per se” the lung condition and is unsatisfactory. We used Sulphur Hexafluoride (SF6; λ=6.10−3 ml ml−1 760 mmHg−1) to identify… (More)
DOI: 10.1007/BF01716739


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