Category: Workplace safety

Millions of drug tests are conducted annually for employment and legal reasons [1.3.3]. When reviewing results, many ask, **what does CR mean on a drug test?** This abbreviation refers to creatinine, a crucial marker for ensuring the test sample itself is valid and has not been tampered with [1.2.1, 1.2.5].

Workforce drug positivity rates remain at historic highs, with post-accident positivity for marijuana alone seeing consistent increases since 2012 [1.7.3]. Amid this landscape, understanding lab reports is crucial, but what is PC on a drug test? The term is an abbreviation with several distinct meanings, none of which refer to a single drug.