Sloop G, Hall M, Simmons G T, Robinson C A
Department of Pathology, University of Alabama at Birmingham, USA.
J Anal Toxicol. 1995 Nov-Dec;19(7):554-6. doi: 10.1093/jat/19.7.554.
Three cases of multiple false-positive drug tests are described. Postmortem urine specimens were screened using the enzyme-multiplied immunoassay technique. All patients had proteinuria and lactic aciduria. These false-positive reactions were due to the presence of lactate dehydrogenase (LDH), lactic acid, and protein. This finding was confirmed by creating a multiple false-positive sample with a solution of LDH and lactate in 5% bovine serum albumin at pH 6.
