An experimentary observation, such as urea clearance test, PSP test, Fishberg concentration test. NPN and serum Cl, on 83 cases of urological diseases showed as followed. 1. Urea clearance test The values decreased remarkably on bilateral and simple renal tuberculose. 2. PSP tese
That showed low value on all of the urological diseases. 3. Fishberg concentration test
The values decreased remarkably on the renal tuberculose. 4. Serum N. P. N. The values were higher than normal. 5. Serum Cl The values did not show any changeful results. The values of 1, 2, 3, above mentioned had a relationship each other.