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.
'Asian flush' red flag for risk of cancer. A condition called 'Asian flush' happens to certain people of Asian descent after they have consumed alcohol. The red blush, shown on right, is the result of a deficient gene. Pjbrooks / PLoSmedicine.org. Between the brisk cold and the holiday cheer, many of us get a little red in the face this time of year.