✅ COURT-ACCEPTED · CERTIFIED CHAIN-OF-CUSTODY COLLECTION
PEth / Phosphatidylethanol Blood Test
Detects alcohol use over the past 2–4 weeks — the gold standard for sobriety monitoring
The PEth (Phosphatidylethanol) blood test is the most accurate method for documenting long-term alcohol use or abstinence. Unlike breathalyzers or urine ETG tests that only detect recent drinking, PEth detects alcohol consumption going back 2 to 4 weeks from a single blood draw. It is widely used in custody cases, probation monitoring, HIMS pilot programs, and professional licensing compliance. No doctor referral required. Serving Schaumburg, Arlington Heights, Palatine, Naperville, Hoffman Estates, and surrounding Chicagoland suburbs.

- SAMHSA-Certified Lab
- 100% Confidential — Results Shared With You Only
- No Doctor Referral Required
Visit Our Rolling Meadows Lab
Available at our lab — request an appointment and a coordinator will confirm your visit
Mon–Fri: 8:00 am–5:00 pm
Sat: 8:00 am–2:00 pm
Sun: 10:00 am–2:00 pm
$299
We Come to You
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- SAMHSA-Certified Lab Analysis
- Chain-of-Custody Available
- 100% Confidential — Results Go Only to You
- No Doctor Referral Required
- Mobile Collector Comes to You
- Licensed and Trained Collectors
Price
$299
Results in 3–7 business days- What it screens for
- PEth / Phosphatidylethanol (Long-Term Alcohol Biomarker)
- Collection method
- Blood
- Detection window
- 2–4 weeks
- Mobile collection available
- No — blood collection at certified partner facility
- Typical turnaround
- 3–7 business days
- Price
- $299
What This Test Screens For
- PEth / Phosphatidylethanol (Long-Term Alcohol Biomarker)
Frequently Asked Questions
What is the PEth / Phosphatidylethanol Blood Test?
The PEth (Phosphatidylethanol) blood test is the most accurate method for documenting long-term alcohol use or abstinence. Unlike breathalyzers or urine ETG tests that only detect recent drinking, PEth detects alcohol consumption going back 2 to 4 weeks from a single blood draw. It is widely used in custody cases, probation monitoring, HIMS pilot programs, and professional licensing compliance. No doctor referral required. This is a blood test.
Who needs a PEth / Phosphatidylethanol Blood Test?
Detects alcohol use over the past 2–4 weeks — the gold standard for sobriety monitoring No doctor referral, insurance, or clinic visit is required — anyone can book it directly.
How is the sample collected?
Collection method: Blood. Blood draws are coordinated through our certified collection partner facility in Rolling Meadows, IL — mobile collectors cannot perform blood draws at home.
How far back does this test detect?
Detection window: 2–4 weeks.
How long do results take?
Most results are ready in 3–7 business days after our SAMHSA-certified partner laboratory receives your sample.
Is this test court-admissible?
Chain-of-custody collection is available for legal, custody, and probation matters. Let us know at booking if you need court-admissible results.
How much does the PEth / Phosphatidylethanol Blood Test cost?
The PEth / Phosphatidylethanol Blood Test is $299. Blood collection is coordinated through our certified partner facility in Rolling Meadows.
How do I book a PEth / Phosphatidylethanol Blood Test?
Use the booking options on this page or call (219) 315-0345. Blood collection is scheduled at our certified partner facility in Rolling Meadows.
Is the PEth / Phosphatidylethanol Blood Test confidential?
Yes. Results are delivered securely to you only. We never report results to employers, insurers, or any third party unless you specifically request it.
How It Works
- 1
Choose your test
Tell us what you need or call us — we will help you pick the right panel.
- 2
We come to you
Our collector comes to your home, office, or any location within our service area.
- 3
Collection takes minutes
Professional, discreet collection following strict chain-of-custody protocols.
- 4
Results delivered
Results sent securely to you within the agreed timeframe — typically 24–72 hours.
Call (219) 315-0345 to book or ask a question.
