Phosphatidylethanol Test | PEth Blood Test

PEth Drug Screening Test

Evaluate your blood for phosphatidylethanol (PEth), a long-term specific biomarker of alcohol consumption. Read more

Test details

Sample type:

Blood

Preparation:

You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.

Test type: In Person

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$142.00

+ $6.00 Physician Service Fee

Quantity

About the Test

This PEth test checks your blood for consumption of alcohol.

Drug testing detects the presence of specific drugs and/or drug metabolites in a blood sample to determine drug exposure. A phosphatidylethanol test, also known as a PEth alcohol test, measures the level of an alcohol biomarker (PEth) found in the blood after alcohol consumption. This PEth blood test specifically looks for ethyl alcohol (ethanol). A positive PEth result is a more specific indicator of alcohol consumption than other alcohol biomarkers (eg, ethyl glucuronide [EtG]/ethyl sulfate [EtS]) that may be formed from incidental exposure to sources containing alcohol (eg, hand sanitizers).¹

You must be 18 years of age or older to purchase a test on questhealth.com. Purchases not permitted in: AK, AZ, HI.

You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.

After you provide your specimen, it generally takes a few business days to process and release your test results. However, processing times may vary. Your test results will be available in a clear and easy-to-read report. Independent physicians are available to discuss questions or concerns you may have regarding your results.

How it works

questhealth.com offers 100+ consumer-initiated Quest Diagnostics lab tests to empower you to have more control over your health journey. Choose from a variety of test types that best suit your needs.

In-person
In-home sample collection

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No doctor visit is required for purchase.

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Register your test
& schedule an appointment

Book a visit to one of 2000+ Quest locations.

Visit Quest for sample collection

Complete your test sample collection during your scheduled appointment.

Get fast results

Access results online as soon as they’re available. You will be emailed when they are ready. Discuss your results with an independent physician at no extra cost. Treatment options may be available.

Buy a lab test
+ in-home sample collection

No doctor visit required for purchase. If in-home service is available in your area, purchase for an additional $79 fee.

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Register your test
& schedule an appointment

After you make a purchase, register your test and Quest Mobile will contact you to schedule an in-home sample collection appointment.

In-home sample collection

A Quest Mobile phlebotomist will collect your sample and deliver it to Quest Diagnostics.

Get fast results

Access results online as soon as they’re available. You will be emailed when they are ready. Discuss your results with an independent physician at no extra cost. Treatment options may be available.

FAQs

Why use an alcohol blood test for alcohol instead of the standard urine drug test?

PEth testing may provide a longer window of detection (eg, 1-2 weeks) than EtG and EtS (eg, 80 hours). PEth may be detectable for extended periods (eg, up to 4 weeks) in chronic/excessive alcohol users.^1,2 Higher alcohol consumption leads to higher PEth levels in the blood. PEth testing can also be performed on patients who may have difficulty providing a urine specimen (eg, transplant patients).

What is the detection window for a blood PEth alcohol drug test?

PEth may be detectable for extended periods (eg, up to 4 weeks) in chronic/excessive alcohol users.^1,2

Can I use my FSA or HSA funds to purchase tests on questhealth.com?

You may be able to use your FSA or HSA funds to purchase lab tests at questhealth.com. Please review your FSA/HSA plan or check with a tax professional to confirm specific requirements for individual eligibility.

Our references

• Ulwelling W, Smith K. The PEth blood test in the security environment: what it is; why it is important; and interpretative guidelines. J Forensic Sci. 2018;63(6):1634-1640. doi:10.1111/1556-4029.13874

• Schröck A, Pfäffli M, König S, Weinmann W. Application of phosphatidylethanol (PEth) in whole blood in comparison to ethyl glucuronide in hair (hEtG) in driving aptitude assessment (DAA). Int J Legal Med. 2016;130(6):1527-1533. doi:10.1007/s00414-016-1394-4

Tests purchased on questhealth.com are only for individuals who intend to pay directly for testing and do not want to submit a claim for reimbursement under their health insurance.

PEth Drug Screening Test