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ÉCHANGES GAZEUX

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INFLUENCE DU Q S /Q T SUR LA PaO2<br />

SaO2 (%)<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

VEINE<br />

EXEMPLE : Q S /Q T = 50 %<br />

Q S .CvO2<br />

0 100 200<br />

PaO2 = 65 mmHg<br />

Q T .CaO2<br />

(Q T - Q S ) .CcO2<br />

PaO2 (mmHg)<br />

300 400

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