Definition and Etiology. Ascites is defined as the accumulation of fluid in the peritoneal cavity. It is a common clinical finding, with various extraperitoneal and peritoneal causes (Box 1), but it most often results from liver cirrhosis.
Tests for the detection of Bence-Jones Protein. Bradshaw Test. The urine specimen is treated with 1 or 2 drops of 33 per cent acetic acid to bring the pH down to 4.8 to 5.0, centrifuged clear, and diluted 1:1 with water. The diluted urine is layered carefully over concentrated HCl in a test tube.
When urine is being screened for the presence of cocaine, it is actually benzoylecgonine, a metabolite of cocaine, that is being measured. Second, as to how long it will take for this metabolite to be eliminated from the urine, in some cases the answer may be longer than traditionally thought.