58 



SELLARDS AND SHAKLEE. 



Table III. — Injection of urea, case No. 11. 











Interval 

 between 

 speci- 

 mens. 



Cubic 

 centi- 

 meters 

 of urine. 



Per cent 

 of urea. 



Grams 

 of urea. 



Hours. 











«70 

 110 



0.1 

 0.1 



0.07 

 0.11 



13i 



3 ! 40 



0.1 



0.04 



Injection of 2 grams of urea. 



4 



60 



0. 1 0. 06 



13i 



230 



0.15 



0.35 



9 



180 1 0.15 



0.27 



Injection of 8 grams of urea. 



5i 



160 



0.3 



0.48 



8 



120 



0.1 



0.12 



16 



340 



0.6 



2.04 



Death after six hours. 



1 1 1 



" Preceded by anuria for twenty-eight hours. 



In a third case (number 18) 5 grams of urea were added to the third injection 

 of Ringer's solution. The patient died in uraemia, one and one-half days later. 

 During this period a total of 1.7 grams of urea were recovered. The number of 

 samples lost by involuntary micturition was unavoidably large, only about half 

 of the specimens being obtained. The data are to be found in Table IV. 



Table IV. — Injection of urea, case No. 18. 



Interval 

 between 

 speci- 

 mens. 



Cubic 

 centi- 

 meters of 

 urine. 



Per cent 

 of urea. 



Grams 

 of urea. 



Hours. 











«100 

 ction of 5 



0.25 

 2;rams of u 



0.25 



Inje 



3 



60 



0.5 



0.30 



6 



50 



0.2 



0.10 



9^ 



100 



0.7 



0.70 



2i 



15 



0.11 



0.02 



5 



80 



0.25 



0.20 



2 



85 



0.3 



0.25 



Death after 



1 



nine houi 



•s. 



■ Preceded by anuria for nineteen hours. 



•• This injection was made one and one-half hours after the first specimen of urine 

 was obtained. Catheterization showed no urine at the time of injection. 



In a fourth case, number 15, death occurred thirty-six hours after injection 

 without any definite changes in the excretion of urea. Two specimens of urine 

 were obtained during the stage of collapse, the urea falling from 0.6 per cent 

 in the first to 0.05 per cent in the second. Then after a period of twenty-one 

 hours of anuria, 8 grams of urea were injected. Two specimens of urine were 



