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Test Code ALC Ethanol, LAB46



Note: For request of legal ethanol specimens, see #ETOHLC Ethanol, Legal, Blood.

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Light green-top (lithium heparin gel) tube or lavender-top (EDTA) tube.

Acceptable: Gold-top serum gel tube, plain red-top tube, lavender-top (EDTA) tube,

                       or Grey-top (potassium oxalate/sodium fluoride) tube

Specimen Volume: 0.2 mL of plasma or serum

Stability: Separated specimens should be analyzed immediately or kept at 2 – 8°C

                and analyzed within 3 days. For longer storage, samples may be frozen at

                -20 °C for up to 3 months.

Collection Instructions:

Note: 1. A non-alcohol swab (Betadine) must be used to sterilize drawing site.

           2. Patient ingestion of alcohol-containing medicinal liquids (ie, elixirs and

              mouthwashes) may affect result.


Reference Values


Critical value: >300 mg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

Ethanol measurements obtained are used in the diagnosis and treatment of ethanol intoxication and poisoning.