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.
Words to the wise: If you are Asian and alcohol makes you flush, limit yourself to only an occasional drink or donât drink at all. Even if you used to flush when you drank but no longer do so, you may still be at increased risk and should limit your alcohol intake.