Browsing Research Articles (Chemical Pathology) by UP Author "Laurens, Johannes B."

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Browsing Research Articles (Chemical Pathology) by UP Author "Laurens, Johannes B."

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  • Efavirenz interference in urine screening immunoassays for tetrahydrocannabinol 
    Oosthuizen, Nicholette M.; Laurens, Johannes B. (Royal Society of Medicine Press, 2012-03)
    BACKGROUND: It has been known for some time that the antiretroviral drug, efavirenz (EFV), cross-reacts in urine immunoassays for tetrahydrocannabinol (THC). Because published studies investigating this phenomenon are ...