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Ethylsulfate in urine (24-hour collection)

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

This test measures the amount of ethylsulfate, a metabolite of ethanol, in your urine over a 24-hour period. It helps assess alcohol consumption and liver function.

Quick summary

["This test tracks alcohol exposure and liver health through urine over a full day."]

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

Key facts at a glance

LOINC
77885-2
Short code
Ethyl sulfate CtO Ur Cfm-mCnc
Synonyms
Ethyl sulfate CtO Ur Cfm-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test to evaluate long-term alcohol intake or monitor liver health. Ethylsulfate is a stable marker of ethanol metabolism, making it useful for detecting chronic alcohol use or assessing metabolic changes in conditions like fatty liver disease.

How the Test Works

A 24-hour urine collection is required. You’ll collect all urine produced during the day, typically in a special container, and return it to the lab. The test measures ethylsulfate levels, which reflect how much alcohol you’ve consumed and how your body processes it.

Sample Collection Process

Follow your provider’s instructions precisely. Use a clean, sterile container and keep it refrigerated if needed. Missing any urine or improper handling may affect results.

What to Expect After the Test

Results are usually reported as a mass concentration (e.g., µg/mg creatinine) to normalize for urine volume. High levels may indicate heavy alcohol use or liver issues, while low levels suggest limited exposure.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Ethylsulfate Urine

Frequently asked questions

What causes elevated ethylsulfate levels?
Chronic alcohol consumption is the most common cause. Other factors may include liver disease, certain medications, or metabolic disorders affecting ethanol metabolism.
How soon will I get my results?
Results typically take 3–7 business days, depending on lab processing. Your provider will contact you with findings once available.
Can I drink alcohol before this test?
Avoid alcohol for at least 24 hours before testing to ensure accurate results. Follow your provider’s specific instructions for dietary or fluid restrictions during the 24-hour collection period.
  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