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Test Code ETGL Ethylene Glycol, Serum

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red


Specimen Required


Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST tubes are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Centrifuge and aliquot serum into plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reference Values

Toxic concentration: ≥20 mg/dL

Day(s) Performed

Monday through Sunday

CPT Code Information

80320

G0480 (if appropriate)

Report Available

2 days

Specimen Retention Time

2 weeks

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject