PEth Testing Services

Reliable Long-Term Alcohol Detection

Phosphatidylethanol (PEth) testing is one of the most reliable methods for detecting long-term alcohol consumption. Known for its highly accurate results, PEth testing stands out as a direct biomarker test that provides a comprehensive look into alcohol use over weeks, not just days.

Fastest Labs proudly offers fast, confidential, and court-admissible PEth testing services tailored to meet various needs. Whether you’re fulfilling a legal obligation, monitoring recovery progress, or seeking personal accountability, our dedicated team is here to support you with efficient and professional service. 

What Is PEth Testing? 

PEth testing identifies alcohol use by detecting phosphatidylethanol, a direct biomarker formed in the body exclusively in the presence of ethanol (consumed alcohol). Unlike other tests that measure secondary metabolites or markers that can be influenced by external factors, PEth provides a detailed and precise indicator of alcohol use over a 2–4 week period. 

This long detection window makes PEth testing the top choice for scenarios that require clear and credible alcohol monitoring.

Common applications include:

• Court-ordered alcohol testing
• Child custody and family law cases
• Substance abuse recovery programs

PEth testing is trusted for its unparalleled accuracy, providing valuable information for legal professionals, medical practitioners, and individuals seeking verified reports on alcohol consumption. 

Dial (210) 361-7778 or find a location near you to learn more about our PEth testing services!

How the PEth Test Works 

With Fastest Labs, the PEth testing process is straightforward, efficient, and designed to provide accurate results.

Here’s an overview of how it works:

• Sample Collection: A small blood sample is collected using the dried blood spot method via a quick and minimally invasive finger prick. 
• Lab Analysis: Your blood sample is sent to certified laboratories where advanced technological methods analyze alcohol biomarkers to provide precise results. 
• Detection Details: PEth is detectable for roughly 14–28 days, giving it an extended window compared to other alcohol tests. Additionally, cutoff levels help determine whether alcohol use is light, moderate, or chronic. 
• Tamper-Proof Results: PEth biomarkers cannot be diluted or faked, ensuring reliable and trustworthy results every time.   

If you’re looking for a credible and confidential alcohol testing service, FastestLabs® is here to meet your needs. Whether for legal, professional, or personal reasons, our team provides quick and accurate PEth testing you can trust.

Why Choose Fastest Labs for PEth Testing? 

Fastest Labs offers accurate, fast, and professional PEth testing. Our advanced alcohol tests detect even low to moderate use, delivering reliable results in just 3–5 business days. Samples are collected by trained professionals in clean, private facilities for a seamless experience.

We also ensure court-admissible results by following strict legal chain-of-custody procedures for official use. With convenient walk-in access at most locations, scheduling a PEth test has never been easier—no appointment necessary!

Find your nearest location today or call (210) 361-7778 to speak with one of our friendly professionals!