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.
This type of flushing is a sign of increased risk of serious health problems. For instance, itâs well known that excessive drinking can raise blood pressure and result in hypertension, but this is more likely to occur in people who flushâand at lower intakes.