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.
Blood alcohol test. This test measures the amount of alcohol, or ethanol, in your blood. When you drink alcohol, more than 90% of it is processed by your liver. The rest leaves your body in your urine, sweat, and breath. Ethanol moves quickly from your digestive tract â mostly your stomach â and is absorbed into your bloodstream.