Different markers and methods
EtG refers to ethyl glucuronide, while “alcohol testing” may refer to other analytes, specimens, devices, or procedures. Those labels do not describe one interchangeable method. Confirm what the exact product is designed to screen for and which specimen its instructions specify.
Avoid generalizing detection timing or interpretation from one method to another. Product documentation and qualified guidance should frame any program-level use.
Select on documented requirements
For purchasing, specify the marker, format, and use context your program needs. Check the SKU-specific analyte list and configuration, then retain the package insert and supplier clarification alongside procurement records.
An item’s SKU or a generic “alcohol” phrase is not enough to establish a cutoff or intended application. Where the listing is incomplete, resolve the question before comparing it with another method.
Recognize the limits of the overview
Biomarker literature describes both uses and interpretive limitations. The educational source below is background material; it does not prescribe an interpretation for an individual or a policy for your organization.
Follow applicable regulations, local procedures, and the device’s current instructions. Ask a qualified professional when a result or method-selection question calls for clinical or compliance judgment.