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.
A: Sometimes called the Asian flush or Asian glow because it is very common in people from East Asia (such as China, Japan, and Korea), this reaction occurs when a person has trouble metabolizing alcohol because of a genetic variant that impairs production of an enzyme that helps metabolize alcohol in the liver.