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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Ethylene Glycol

Test Code(s): ETGL / HCETGL

CPT Code(s): 82693

Test Description: Test Component:

Ethylene glycol and propylene glycol

Methodology: Gas Chromatography

Clinical Significance: For all suspected ingestion cases and after hours testing, please order the Ethylene Glycol and Volatiles (Methanol and Isopropanol) Screen.

Volatiles and Ethylene Glycol testing is performed stat when received between the hours of:
0700-1600 weekdays and limited hours on weekends and holidays.

For more information, please see the test directory entry for Ethylene Glycol and Volatiles Screen.

Days Performed: Daily, dayshift.

Turnaround Time: Stat: 2 hours.
Routine: 24 hours.

Specimen Requirements

Specimen: Blood

Collection Container: Preferred: Red top

Collection Volume: Preferred: 3 mL
Pediatrics: 1 mL

Sample Analyzed: Serum

Volume Required: Preferred: 1 mL
Pediatrics: 0.3 mL

Specimen Processing: Centrifuge as soon as possible. Transfer cell-free serum to plastic vial within 2 hours of collection. Refrigerate.

Specimen Transport: Transport specimen to laboratory. Transport with coolant pack if coming from outreach location.

Unacceptable Criteria: Do NOT draw using red cap with yellow ring (SST) top tube.

Stability: Ambient: 7 days
Refrigerated: 14 days
Frozen: 14 days


Interpretive Guidelines:

Lower limit of detection is 2.0 mg/dL. After ingestion of ethylene glycol, the level may reach 500.0 mg/dL.


Critical Calls: View

Additional Information:

All results will be called. The half-life of ethylene glycol is 3-6 hours. A lethal dose of ethylene glycol is 1-2 mg/kg body weight. Propylene glycol can also be detected by this method.


This test was developed and its performance characteristics determined by the UWHC Clinical Laboratories.  This test meets the standards for clinical testing.  This test should not be regarded as investigational or for research use.  The US Food and Drug Administration (FDA) has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.

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