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The page below is a sample from the LabCE course Minimizing Pre-Analytical Variability During Venipuncture, Urine Sample Collection, and Sample Processing. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Icterus

Icterus, or the presence of elevated levels of bilirubin, is a matrix interferent for which steps cannot be implemented to minimize its presence.
Similar to the presence of lipemia, it is important to provide an observational comment for icterus with the laboratory results, regardless of the test being ordered and the effect of icterus on the result.