Elevated bilirubin concentrations may result in a false elevation of this laboratory test?
High bilirubin concentrations have resulted in falsely elevated acetaminophen levels when the acetaminophen level is performed utilizing an enzymatic assay. (Beuhler M et al. False Positive Acetaminophen Levels Associated with Hyperbilirubinemia. Clin Tox 2009; 43(3): 167-170.)