: Ethyl Sulfate, Quantitative, Saliva

: What Is Ethyl Sulfate?

: Ethyl sulfate is a minor metabolite produced when the body breaks down ethanol (alcohol). Unlike alcohol itself, which clears from the body relatively quickly, ethyl sulfate can remain detectable for a longer period after drinking, making it useful as a marker of recent alcohol intake.

: Why Saliva Is Used

: Saliva collection is simple, non-invasive, and can be observed directly, which helps reduce the chance of sample tampering. Saliva can carry ethyl sulfate that has passed from the bloodstream, allowing detection of recent alcohol use without a blood draw.

: How the Test Is Performed

: A sample of saliva is collected in a supervised setting, typically using a swab or collection device. The sample is then sent to a laboratory, where the concentration of ethyl sulfate is measured using a sensitive analytical method. No special preparation is usually required, though you should follow any instructions given by your provider.

: What the Results Mean

: A detectable or elevated level of ethyl sulfate in saliva generally indicates that alcohol was consumed recently. A result below the detection threshold suggests that no recent alcohol use was identified, although timing of the sample and individual metabolism can affect results. Your provider will interpret results in the context of your history and the reason for testing.