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.
According to Labcorps, the standard length of time benzoylecgonine is detectable in the urine is between two and four days for the average user. However, it is longer for the habitual user, who may have detectable metabolites for up to two weeks after cessation of use.