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* ALCOHOL, MEDICAL

Mnemonic

ETOH

Synonym

Plasma Ethanol - Serum Ethanol

Guidelines

Gray top tube is the specimen of choice as fluoride/oxalate preserves alcohol by preventing glycolysis.

Specimen Collection Requirements

Patient Preparation

Use only aqueous disinfectants. Do not cleanse the sample draw site with alcohol or other volatile disinfectants.

Collect

Preferred: Whole Blood, one gray (sodium fluoride/potassium oxalate) top tube, also acceptable: one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (lithium heparin, PST) top tube.

Handling

Gray (sodium fluoride/potassium oxalate) top tube may be submitted in original container. Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Centrifuge SST or PST tubes but do not remove cap to aliquot specimens. Separate samples must be submitted when multiple tests are ordered.

Preferred Volume

1.0 mL Serum/Plasma

Minimum Volume

0.25 mL Serum/Plasma (0.60 mL minimum whole blood draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens, specimens left uncapped for greater than 60 minutes.

Stability

AFTER SEPARATION FROM CELLS, IF KEPT TIGHTLY CAPPED: Room Temperature (18-26°C): 4 hours; Refrigerated (2-8°C): 3 days; Frozen (≤-20°C): 6 months

Testing Information

Note

Ethanol is a volatile substance, minimize specimen exposure to air.

Performed

7 days/week

Reported

24 hours

Method

Enzymatic

Reference Values

Reference Values

Not Detected (<10 mg/dL)

Toxic Levels

>350 mg/dL

CPT Codes

80301

Last Updated: Wednesday, January 18, 2017 01:25:01 PM


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