Test Overview
Test Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Test Usage
PETH biomarker associated with ethanol consumption; may be helpful in monitoring alcohol abstinence.
Reference Range *
Reference range: Negative
Interpretative report provided.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday and Thursday
Analytic Time
8 hours
Soft Order Code
PETH
MiChart Code
PETH
Laboratory
Chemical Pathology
Reference Laboratory
Mayo FFPET (MedTox)
Section
Drug Analysis
Specimen Requirements
Collection Instructions
Collect specimen in a lavender top tube. Freeze and send intact whole blood to Specimen Processing.
Frozen: 180 days (Preferred). Refrigerated: 14 days and Ambient: 72 hours.
Rejection Criteria
Ambient specimens are not acceptable.
Normal Volume
1.0 mL EDTA whole blood
Minimum Volume
0.5 mL EDTA whole blood
Storage Temperature
Ambient: Unacceptable; Refrigerated: 2 weeks; Frozen: 6 months.
Additional Information
Test sent to Mayo Clinic Laboratories; performed by MedTox Laboratories.
Billing
CPT Code
80321
Fee Code
KA034
LOINC
74661-0