57. ARTERIAL AND VENOUS BLOOD GAS COMPARISONS: MAN. ADULT AND NEWBORN 



In the adult, A = arterial blood from femoral or brachial artery; V = venous blood from internal jugular vein, unless 

 otherwise indicated; all values for males, under resting conditions. In the newborn (before first breath), where the 

 oxygenated blood goes from the placenta to the fetus via the umbilical vein, A = arterial blood from vena umbilicalis, 

 V = venous blood from arteria umbilicalis. Methods: A-R = calculated from alkali reserve, Henderson nomogram, 

 and CO2 content; D-M = potentiometric measurement with the dropping- mercury electrode; G-E = measurement with 

 glass electrode; H-H = calculated from the Henderson-Hasselbalch equation, using 6.10 for pK'; P-A = calculated 

 from pH and arterial CO2 content converted to plasma CO2 content by use of the Henderson-Hasselbalch equation; 

 R-C = Van Slyke-Neill manometric method with Roughton corrections for O^ capacity; V-N = Van Slyke-Neill mano- 

 metric method. Values in parentheses are ranges, estimate "c" of the 95% range (of Introduction). 



/I/ Mixed venous blood from pulmonary artery. /2/ Arterio- venous O2 difference. 



Contributors : Bartels, H., and Opitz, E. 



R eferences : [ l] Bartels, H.. and Rodewald. G., Pflugers Arch. 256: 1 13, 1952. [2] Beer. R., Bartels, H., and 

 Raczkowski, H. A., ibid 260:306, 1955. [3] Bartels, H., Beer, R., Fleischer, E., Hoffheinz, H. J., Krall. J.. 

 Rodewald. G.. Wenner. J., and Witt. I., ibid 261:99, 1955. [4] Gibbs, E. L., Lennox. W. G., Nims, L. F., and 

 Gibbs, F. A., J. Biol. Chem. 144:325, 1942. fTT Douglas, J. C, and Edholm. O. G.. J. Appl. Physiol. 2:307. 1949. 



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