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| 36287:ETHYLENE GLYCOL, QUANTITATIVE | |||||||||
| Alias Names: | EG / EG Metabolite / Glycolic Acid / Antifreeze | ||||||||
| Methodology: | Gas Chromatography / Mass Spectrometry (GC/MS) | ||||||||
| Edit Date: | 3/17/2009 | ||||||||
| Performed: | Daily | ||||||||
| Released: | Within 24 hours of receipt | ||||||||
| CPT Code: | 82693 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 5 mL red top tube. Also acceptable: One 4 mL lavender top tube (EDTA) or one 4 mL green top tube (heparin). NOT acceptable: Serum separator tube (SST). | ||||||||
| Handling: | Allow red tube to clot, centrifuge, and separate serum or plasma from cells. | ||||||||
| Stability: | 7 days ambient, 14 days refrigerated, or 30 days frozen. | ||||||||
| Standard Volume: | 1.0 mL serum or plasma. | ||||||||
| Minimum Volume: | 0.5 mL serum or plasma. | ||||||||
| Transport: | Refrigerated. | ||||||||
| Comments: | Ethylene glycol and its metabolite, glycolic acid, are tested and reported. | ||||||||
| Rejection Criteria: | Unlabelled specimen; insufficient volume; serum from a serum separator tube (SST). | ||||||||
| Reference Range: | |||||||||||||||||||
| Ethylene glycol concentration greater than 20 mg/dL is potentially toxic.
Glycolic acid concentration greater than 75 mg/dL is predictive of acute renal failure and death independent of the ethylene glycol concentration. |
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