Alert

Published on December 20, 2021

Phosphatidylethanol (PEth)

Tube Type = Lavender Top

Tube Type

Test ID LAB15856
EPIC Order PHOSPHATIDYLETHANOL (PETH)
CPT Code(s) 80321, G0480 (if appropriate)
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station 30
Specimen

 Routine: 3 mL Blood/Lavender EDTA tube. Do not use alcohol to clean arm. See Comments
Micro: 0.5 mL blood
Availability Reference Laboratory - Mayo Clinic Laboratories
Turnaround Time 3-8 days
Reference Range Normal: See separate Report
Comments
  • Do not use alcohol to clean arm. Use an alternative (such as Betadine, also known as Povidone Iodine) to cleanse the site before specimen collection. 

Reviewed by J. Carr on November 12, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514