A test for kidney function.
1. Specific gravity of urine should reach 1.025 after fluids are withheld for 24 hours.
2. After 1 1/2 litres of water the specific gravity should fall to <1.003.
- F. Volhard, in:
Verhandlungen des Kongresses für innere Medizin, 1910, page 735.
- F. Volhard, Th. Fahr:
Die Brightsche Nierenkrankheit. Berlin, J. Springer, 1940.
Nierenerkrankungen und Hochdruck. Leipzig, 1949.
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