PEth Testing with Go2 Screening Solutions



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What is PEth Testing?

PEth (Phosphatidylethanol) testing is a highly accurate blood test used to detect alcohol consumption over time. Unlike breath or urine alcohol tests, PEth testing can identify alcohol use for up to 2–3 weeks after drinking.

This test is considered the gold standard for alcohol monitoring because it only forms in the body when alcohol is consumed.

How Does PEth Testing Work?

When alcohol enters the bloodstream, it reacts with red blood cell membranes to form phosphatidylethanol (PEth). This compound:

  • Only appears after alcohol consumption
  • Builds up with repeated use
  • Remains in the body longer than traditional alcohol tests

Because of this, PEth testing is highly reliable for identifying recent and repeated alcohol use.

How Long Does PEth Stay in Your System?

  • Light drinking: Detectable for several days
  • Moderate drinking: Up to 1–2 weeks
  • Heavy or frequent drinking: Up to 3 weeks

This makes PEth testing ideal for monitoring ongoing alcohol consumption patterns.

Why Choose PEth Testing Over Other Alcohol Tests?

  • Highly accurate with no false positives from external exposure
  • Long detection window of up to 3 weeks
  • Detects repeated alcohol use, not just recent intake
  • Court-admissible and widely trusted

Compared to breath or urine tests, PEth provides a clearer picture of alcohol use behavior over time.

Who Needs PEth Testing?

PEth testing is commonly used for:

  • Court-ordered alcohol testing (probation, custody cases)
  • Family law and legal monitoring
  • DOT and non-DOT compliance testing
  • Substance abuse programs
  • Personal or medical monitoring

Contact us today to schedule your PEth testing appointment in Marietta, GA and get fast, confidential, and reliable results.