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Ethyl sulfate in urine (24-hour collection)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of ethyl sulfate, a metabolite of ethanol (alcohol), in your urine over a 24-hour period. It helps assess recent alcohol exposure or patterns of consumption.

Quick summary

["This test helps track alcohol use by detecting its breakdown products in urine."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
82508-3
Short code
Ethyl sulfate Sal-mCnc
Synonyms
Ethyl sulfate Sal-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why is this test done?

Your healthcare provider may order this test to evaluate recent alcohol intake, monitor substance use disorders, or investigate symptoms linked to alcohol exposure, such as confusion, dehydration, or unusual behavior. It can also be part of a broader evaluation for liver function or other health concerns related to alcohol.

What does the test involve?

You’ll collect all urine produced in a 24-hour period in a special container. The sample is then sent to a lab for analysis using a high-performance liquid chromatography (HPLC) method to measure ethyl sulfate levels.

What should you expect before the test?

No special preparation is needed, but avoid drinking alcohol for at least 24 hours before your urine collection to ensure accurate results. Drink plenty of water to help dilute urine if needed, but avoid excessive fluid intake that could dilute the sample too much.

What are the results typically used for?

Results help determine if alcohol has been consumed recently or regularly. Elevated levels may indicate ongoing alcohol use, while very low or absent levels suggest abstinence or minimal exposure. This information can guide treatment planning or support programs.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance

Short name

Ethyl sulfate urine

Frequently asked questions

How long does it take to get results?
Results are usually available within 1 to 3 business days, depending on lab processing times. Your healthcare provider will discuss the findings with you during your follow-up visit.
What if I have questions about my results?
If you receive results, your healthcare provider will explain what they mean in the context of your health. If you’re unsure, ask them to clarify any concerns—results can be part of a larger picture about your health and treatment plan.
Can I drink alcohol before this test?
No, avoid alcohol for at least 24 hours before your urine collection to prevent false high results. If you’re unsure about timing, check with your provider or lab technician.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy