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Phosphatidylethanol (PEth), Screen

Test ID: 


CPT code:



•Ethyl Alcohol Biomarker

Clinical Use:

Measures blood levels of phosphatidylethanol, an alcohol-specific biomarker.

Specimen Type:

Whole blood

Requested Volume: 

1 mL

Minimum Volume: 

0.5 m

Container Type: 

Lavender-top (EDTA) tube or gray-top (sodium fluoride) tube

Storage Instructions:

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen. Specimen is stable for three days at room temperature, for two weeks refrigerated, and for six months frozen.


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