364 



Scientific Proceedings (131) 



taining the dominant color (alkaline, P H 8.0) are employed in 

 plotting the curve from which the calculations are made. 

 Although the solutions apparently keep for some time in the 

 wedges, they should be checked at frequent intervals. 



In several instances where the plasma has been slightly cloudy 

 a third wedge containing finely suspended barium sulfate has 

 been employed to equalize the fields. In this way perfect color 

 matches have been obtained. 



The factors worked out by Cullen to correct the P H values 

 to body temperature (38°C) have been employed. 



FIGUEES FOE THE Ph AND C0 2 CONTENT OE COMBINING POWEE 

 OF THE BLOOD PLASMA IN SEVEEAL NOEMAL AND 

 PATHOLOGICAL CASES 



Age 



60 

 9 

 30 



45 

 35 

 47 



Sex 



M 

 M 

 M 



Date 

 1923 



4/13 

 4/13 

 4/13 



M 



M 

 M 



M 



F. 



3/28 

 3/28 

 3/29 

 4/18 

 3/30 

 4/5 



4/16 

 4/17 

 4/20 

 4/23 



7.37 

 7.40 

 7.41 



7.23 



7.33 



7.275 



7.35 



7.21 



7.15 



7.30 

 7.30 

 7.40 



co 2 



combining 

 power 



c.c. per 100 

 65 

 63 

 67 



22 



28 



30 



47* 



21 



20 



31 



40* 

 63* 

 63* 



Diagnosis, remarks 



Normal findings. 



Diabetic coma. 



4 hrs. after insulin. 



Next morning. 



Diabetic coma. 

 Uremia following 



bladder operation. 

 Chronic nephritis. 



Cardiac decomposi- 

 tion. 



52 



C0 2 content. 



4/9 



4/10 



7.53 

 7.46 



98 

 87 

 83^ 

 79 

 79^ 



Cholecystectomy, had 

 received 40 gm. 

 HNaC0 3 , second 

 specimen on 4/9 

 taken 6 hrs. after 

 first. 



In a series of 25 miscellaneous hospital cases, in which ab- 

 normal value for the P H were not anticipated, the plasma figures 

 obtained with the method described varied between P H 7.35 

 and 7.43, with an average close to 7.39. Illustrative figures on 

 three cases with normal findings and on several interesting 

 pathological conditions are given in the table. In two cases 

 of diabetes in coma the P H values were 7.23 and 7.21, the figures 



