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Measurements of oxygen binding by whole human blood, at 37C, at pH-7.4, and in the presence of 40mmHg of CO 2 , and normal physiological levels of...

Measurements of oxygen binding by whole human blood, at 37�C, at pH-7.4, and in the presence of 40mmHg of CO2, and normal physiological levels of BPG (5mmol/L of cells), give the following:

PO2 (mm Hg) % saturation (=100 x YO2)

10.6 10

19.5 30

27.4 50

37.5 70

50.4 85

77.3 96

92.3 98

From these data, construct a binding curve and estimate the percent oxygen saturation of blood at

(1)100mmHg, the approximate partial pressure of O2 in the lungs, and

(2) 30mmHg, the partial pressure of O2in venous blood.


(b) Under these conditions, what percentage of the oxygen bound in the lungs is delivered to the tissues?

Top Answer

By plotting the graph in between partial pressure and % saturation we can calculate the Percent saturation of oxygen at... View the full answer

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