PEth Alcohol Test in London
Book a professional PEth alcohol test in London to help assess alcohol consumption over the previous 3-4 weeks. This blood test measures phosphatidylethanol, also known as PEth, a biomarker associated with alcohol use.
Results are usually available within 5-7 working days* and are delivered securely by email after doctor review.
Book Your PEth Test
Overview of the Test
The PEth Alcohol Test is a blood test used to help assess alcohol consumption over a longer detection window than standard blood or urine alcohol tests. PEth stands for phosphatidylethanol, a biomarker that forms in the presence of alcohol.
This PEth blood test may be suitable for personal monitoring, legal requirements, workplace testing, recovery support or other situations where documented alcohol testing is requested.
Results are delivered securely by email and supervised by a doctor before being issued. This test does not diagnose alcohol misuse on its own; results should be interpreted with medical history, drinking pattern and professional advice where appropriate.
Who Is This PEth Alcohol Test For?
This private PEth test is suitable for individuals or organisations that need confidential alcohol testing over a longer timeframe.
Legal Purposes
May support legal, court or compliance requests where documented alcohol testing is required.
Workplace Testing
Suitable for occupational health, workplace alcohol policies and professional testing requirements where PEth testing is requested.
Personal Monitoring
Helps assess alcohol intake over recent weeks for personal awareness, recovery support or health-related discussions.
Sample Type
This is an in-person blood test carried out at Patient Reception in London. Your sample is sent to the laboratory for PEth analysis.
How the PEth Test Works
The PEth test measures phosphatidylethanol in blood. PEth is formed in the presence of ethanol, meaning it can provide useful information about alcohol intake over recent weeks.
What It Measures
Phosphatidylethanol, also known as PEth.
Detection Window
Helps assess alcohol consumption over approximately the previous 3-4 weeks.
Result Context
Results should be interpreted alongside drinking pattern, medical history and the reason for testing.
› Read more about PEth testing
Often Combined with Liver Function Testing
PEth testing is often combined with a liver function blood test to check liver markers that may be affected by excessive alcohol consumption over time.
Combining PEth with liver function testing may provide additional health context. A healthcare professional can advise whether this is appropriate for your situation.
Proof of ID Requirement
You must bring valid photo ID to your appointment to support traceability and professional testing standards.
Accepted ID
Passport or driving licence.
Not Accepted
Copies of ID or ID shown on a mobile phone.
Please bring original photo ID to your appointment.
Results and Turnaround Time
Results are usually processed within 5-7 working days* and securely delivered by email. All results are supervised by a doctor before being issued.
Results cannot be provided over the phone because caller identity cannot be verified.
*Turnaround time may vary depending on sample collection time and laboratory processing.
Prefer to Test at Home?
If you would prefer not to attend Patient Reception in London, you can order a home PEth alcohol test kit instead. The home option allows you to collect a finger-prick blood sample and return it to the laboratory by post.
› Do the PEth test at home instead
Why Choose Drug Test London?
Longer Alcohol Window
PEth testing helps assess alcohol consumption over approximately 3-4 weeks.
Professional Testing
Suitable for personal, workplace and legal situations where documented alcohol testing is requested.
Secure Results
Results are delivered securely by email after doctor review and cannot be issued over the phone.
Book Your PEth Test
Frequently Asked Questions
What is a PEth alcohol test?
A PEth alcohol test is a blood test that measures phosphatidylethanol, a biomarker associated with alcohol use. It can help assess alcohol consumption over recent weeks.
How far back can a PEth test detect alcohol use?
PEth testing is commonly used to help assess alcohol consumption over approximately the previous 3-4 weeks. Detection and interpretation can vary depending on drinking pattern and individual factors.
Is PEth testing suitable for legal or workplace purposes?
This test may be suitable where documented PEth alcohol testing is requested. Always check with the requesting organisation or legal adviser if specific evidence requirements apply.
Should I combine PEth with a liver function test?
A liver function test may provide additional information about liver markers that can be relevant in alcohol-related assessments. A healthcare professional can advise whether this is appropriate for your situation.
Can I do the PEth test at home?
Yes. If you prefer home collection, you can order the home PEth alcohol test kit using the linked home test option above.
How quickly will I receive results?
Results are usually processed within 5-7 working days and delivered securely by email after doctor review. Turnaround time may vary depending on sample collection time and laboratory processing.
