Test directory: Phosphatidylethanol, Blood

Ordering Code 8030
Test Name Phosphatidylethanol, Blood
Alias Phosphatidylethanol Confirmation, Blood
PETH
PEth
1-Palmitoyl-2-linoleoyl-sn-glycero-3-phosphoethanol
(PLPEth)
1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanol
(POPEth)
Ethyl alcohol biomarker
Preferred Specimen Whole Blood
Preferred Container EDTA, K2 (Lavender)
Optimum Volume 1 mL
Collection Instructions Do not use alcohol to clean arm. Use alternatives such as
Betadine or ChloraPrep to cleanse arm before collection.
Handling Instructions Do NOT centrifuge specimen
Send whole blood specimen in original tube. Do not aliquot.
Transport Requirements Oahu: Refrigerated
Airline: Refrigerated
Specimen Stability Ambient: Not Stable
Refrigerated: 14 Days
Frozen: 28 Days
Avail. Stat NO
Analytic Time 7 Days
Methodology Liquid chromatography tandem mass spectrometry
Reference Lab  Mayo Medical Lab

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
PEth 16:0/18:1 (POPEth) ALL See report.
PEth 16:0/18:2 (PLPEth) ALL See report.
PEth Interpretation ALL See report.