Detection Windows The window to detect the presence of a particular drug in a personâs urine is highly dependent on multiple factors, such as: Hydration-More dilute urine from high fluid intake may cause dilution of drug and therefore a negative result due to levels present but below the cutoff.
Alcohol flush reaction. Alcohol flush reaction is a condition in which an individual develops flushes or blotches associated with erythema on the face, neck, shoulders, and in some cases, the entire body after consuming alcoholic beverages.
As such, consumption of it can cause the capillaries near the skin to dilate, resulting in more blood flow to the skin and a flushed appearance. In addition, certain individuals can lack sufficient alcohol dehydronase, an enzyme that assists in the breakdown of alcohol. This is very common in asians. ...Read more.