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How To Interpret Results

(Alco-Screen 02 results shown at bottom of page)

Interpreting Alco-Screen Results:

Alco-Screen Box
Alco-Screen Group Imge

Alco-Scree Results

Alco-Screen Results

The Alco-Screen test consists of a plastic strip with a reactive pad applied at the tip. The tip, on contact with solutions of alcohol, will rapidly turn shades of green to blue to gray depending on the amount of alcohol present.
 
The reactive pad employs a solid phase chemistry that utilizes the following enzyme chemistry that is highly specific in this application. The Alco-Screen will react with methyl, ethyl, and allyl alcohols. Alco-Screen produces a color change in the presence of saliva alcohol ranging from a light green-gray color at 0.02% (0,20‰) blood alcohol concentration to a dark blue-gray color near 0.30% (3,0‰) blood alcohol concentration.
 
Color blocks are provided within this range to allow an approximation of blood alcohol concentration to be made. Alco-Screen may produce colors that appear to be between adjacent color blocks. Alco-Screen is very sensitive to the presence of alcohol. A green color that is lighter than the 0.02% color block should be interpreted as being positive to the presence of alcohol in saliva but less than 0.02% (0,20‰) blood alcohol.

A result where the reagent pad shows no color change (remains white or cream colored) should be interpreted as a negative result (no alcohol present). A result where the outer edges of the reagent pad produces a slight color but the majority of the pad remains colorless should be repeated to ensure complete saturation of the reagent pad with saliva. If the second result is the same, the results should be interpreted as being negative (no alcohol present).


 
Interpreting Alco-Screen 02 Results:

Alco-Screen Box
Alco-Screen Group Imge
Alco-Screen 02 Results
Alco-Screen 02 Results
 
The Alco-Screen 02 test consists of a plastic strip with a reactive pad applied at the tip. The tip, on contact with saliva samples with alcohol in excess of 0.02% (0,2‰) will produce a positive result after 4 minutes, which is indicated by the development of a distinct colored line across the pad.

The reactive pad employs a solid phase chemistry that utilizes the following enzyme chemistry that is highly specific in this application. At four (4) minutes, observe the results on the reactive pad. Reading the results may be made easier by placing the test on a white background.
 
The development of a distinct colored line across the reactive pad indicates the presence of alcohol greater than 0.02% (0,2‰) BAC. Results obtained after more than five (5) minutes may be erroneous. Alco-Screen 02 produces a distinct colored line across the reactive pad in the presence of saliva greater than 0.02% (0.02g/dL) BAC. A reagent pad that shows no distinct line should be interpreted as less than 0.02% (0,2‰) BAC.