Cut-off and toxicity levels for drugs-of-abuse testing.(Chart) Medical Laboratory Observer | August 1, 2006 | COPYRIGHT 2006 Nelson Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright

 
Cut-off and toxicity levels for drugs-of-abuse testing 
 
This table summarizes information useful in the interpretation of 
drugs-of-abuse assays. It was developed by Daniel M. Baer, MD, 
professor emeritus of pathology, Oregon Health Sciences University, 
Portland OR, and updated by Richard A. Paulson, MT(ASCP), supervisor 
of chemistry and toxicology, VA Medical Center, Portland, OR. The 
table was updated for CLR 2006-2007 by Robert H. Williams, PhD, DABCC, 
FACB, MT(ASCP), Clinical Scientist/Consultant, Quest Diagnostics, 
Inc. and Clinical Associate Professor of Pathology, ...
<72 hours 
Hydrochloride       Kay, Vitamin K, 
(Ketajet)           Jet, Cat Valium 
 
Drug (and trade     Urine cut-off     Toxic blood level 
name)               points for 
                    reporting 
                    positive or 
                    limit of 
                    quantitation * 
 
OPIATES 
 
Heroin              2000 ng/mL (as>

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