382 HERMAN O. MOSENTHAL 



8 A.M. Roll 80 gm., butter 20 gm., marmalade. 

 10 A.M. Roll 80 gm., butter 15 gm., 1 egg 

 12 ISToon Meat 100 gm., mashed potato or rice 200 gm., vegetable 



100 gm., fruit, fresh or stewed 100 gm. 

 4 P.M. Roll 80 gm., butter 20 gm., marmalade 40 gm. 

 7 P.M. Roll 80 to 120 gm., butter 10-20 gm., meat, 50-100 gm., 

 2 eggs. 



In normal individuals the fluid ingested is largely excreted within two 

 hours; subsequently the concentration of the urine rises. Examples of 

 this method of testing renal function are given in Table 34 taken from 

 Munk's book. 



TABLE 34 







EXAMPLES OF COMBINED DILUTION AND CONCENTRATION TESTS AS GIVEN BY MUNK 



This method yields results that are as satisfactory, but not more 

 so than the test day for renal function. However, it entails too much 

 discomfort for the patient ever to become a method of choice. The same 

 criteria in regard to nocturnal polyuria, fixation of specific gravity, etc., 

 as given under the caption of test day for renal function, apply here. The 

 method has been given in detail because it evidently is used extensively 

 in German clinics and may come to be employed in this country. 



Uremia 



Introduction and Definition 



Uremia, as the term implies, was originally conceived to be a condi- 

 tion in which urea accumulated in the blood and tissues as the result of in- 

 adequate kidney activity. At that time the whole problem of nephritis was 



