Test Details
Mnemonic
ETOHF
CPT-4 Code(s)
80320 (G0480)
Specimen Information
Patient Preparation
Specimen must be collected as a Chain of Custody, and accompanied by a Warde Chain of
Custody requisition.
Interfacing for forensic testing is not available at this time.
Custody requisition.
Interfacing for forensic testing is not available at this time.
Collect
Gray sodium fluoride. Use non-alcohol swabs during collection.
Specimen Preparation
Send 5.0 mL whole blood, refrigerated. Do not remove cap from collection tube. Follow Chain of
Custody collection protocol.
Custody collection protocol.
Alternate Specimen
Serum from Red top, green sodium or lithum heparin
Minimum Volume
1.0 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum separator tube (SST), any tubes containing gel
Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: Whole blood: Unacceptable; Plasma/Serum/Urine: 30 days
Refrigerated: 7 days
Frozen: Whole blood: Unacceptable; Plasma/Serum/Urine: 30 days
Methodology
Gas Chromatography/Flame Ionization Detector
Reference Range
Decision Level: 10 mg/dL
Low toxic: >300 mg/dL
Low toxic: >300 mg/dL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
No