ALCOHOL SCREEN - (P)
Test Code: ALC
Test performed at: St Boniface Hospital by Shared Health Clinical Biochemistry Laboratory using a gas chromatography (GC-FID) method.
Ethanol, methanol and isopropanol are measured simultaneously. Ethylene glycol is a separate test; on initial screen, lab will add Ethylene Glycol to the order. Radiator antifreeze contains ethylene glycol. Windshield washer antifreeze contains methanol. Use soap and water to clean venipuncture site.
Do not use separator gel.
|Specimen Required:||Any anticoagulant plasma or serum collected without gel is acceptable.|
Plasma or serum must be aliquoted. Full aliquot tube is required.
Not present unless consumed.
Toxic: > 6 mmol/L
Lethal: >30 mmol/L (mmol/L x 3.2 = mg/dL)
Toxic: >12 mmol/L
Lethal: >35 mmol/L (mmol/L x 6.0 = mg/dL)
Toxic: >33 mmol/L
Lethal: >90 mmol/L (mmol/L x 4.6 = mg/dL)
Toxic: >3.4 mmol/L
Stat or Routine
Do both alcohol and ethylene glycol screens on the initial specimen. If an ingestion is confirmed, subsequent analysis of methanol or ethylene glycol during treatment at approximately 4-6 hour intervals is appropriate.