Because concomitant sequelae of alcoholism are often present in addicts an alcohol screen should be done. The Alcohol Screen is a qualitative enzymatic quick test for the detection of alcohol in saliva or urine. The Alcohol Screen is simple and fast and shows a positive result if the level is above 0.1% alcohol. The assay detects ethanol at concentrations of 0.1% or 10mg/dL respectively by color change of the test pad to light greenish-grey. The green color intensifies with higher alcohol concentration in the sample. Thus, Alcohol-Screen produces a color change in the presence of alcohol in the specimen ranging from a light green-grey color at 0.1% concentrations via middle green at medium concentrations to a dark greenish-grey color at a 3.0% alcohol concentration (Figure V-15).
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