Sink test is a form of medical laboratory diagnostics healthcare fraud whereby clinical specimens are discarded, via a sink drain, and fabricated results are reported, without the clinical specimen actually being tested.^[1]

In the United States, the prevalence of sink test laboratories in the 1980s led in part to regulation following the passage of Clinical Laboratory Improvement Amendments in 1988.^[2]

While this illegal practice still occurs, it is rare within the highly regulated US lab market.

1. ^ Adamson, Judith L. (1 November 2006). ""Sink Testing"—Myth or Reality?". Laboratory Medicine. 37 (11): 652–653. doi:10.1309/PGNGDM59CAP4C9HX.
2. ^ Michel, Robert (9 May 2005). "Why Is There Crime In the Lab Industry?". The Dark Report. Retrieved 28 December 2018.

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