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Ethylene Glycol Mass Concentration (Serum or Plasma)

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

This test measures the amount of ethylene glycol, a toxic substance found in antifreeze and other chemicals, in your blood. High levels can be dangerous and require prompt medical attention.

Quick summary

["Ethylene glycol poisoning can be life-threatening; this test helps doctors diagnose and guide treatment quickly."]

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

Key facts at a glance

LOINC
38596-3
Short code
Ethylene Glycol Air-mCnc
Synonyms
Ethylene Glycol Air-mCnc
Category
glucose
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 if you’ve ingested ethylene glycol (e.g., antifreeze) or if symptoms like confusion, vomiting, or difficulty breathing appear after exposure. It’s also checked in people with known exposure or symptoms of poisoning.

What to Expect Before the Test

No special preparation is needed. A blood sample will be drawn from a vein in your arm. You may feel a slight pinch, but it’s quick and usually over in minutes.

What the Results Mean

Results are compared to known toxic thresholds. Very high levels suggest poisoning, while lower levels may indicate recent exposure or less severe effects. Always discuss results with your doctor.

Symptoms of Ethylene Glycol Poisoning

Symptoms can appear within hours and include nausea, vomiting, rapid breathing, confusion, seizures, or even coma. If you or someone else has ingested ethylene glycol, seek emergency care immediately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Ethylene Glycol Level

Frequently asked questions

What triggers this test?
This test is typically ordered after suspected exposure to ethylene glycol (e.g., antifreeze) or if you develop symptoms like confusion, seizures, or severe vomiting shortly after exposure.
How long does it take to get results?
Results are usually available within 24 hours, depending on lab processing times. Your doctor will contact you with findings if needed.
Can I drink water before the test?
Yes, you can drink water as usual unless your doctor specifies otherwise. Avoid alcohol or other fluids that might interfere with the test.
  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