LORCET, SERUM (HYDROCODONE/ACETAMINOPHEN)

Test Documentation
Specimen Required
Draw blood in a plain red-top tube. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: EDTA, heparin (sodium or lithium)

Rejection Criteria
SST

Methodology
High Performance Liquid Chromatography and Liquid Chromatography/Tandem Mass Spectrometry

Stability
Room Temperature: 48 hours; Refrigerated: 14 days; Frozen: 14 days

Reference Range
Hydrocodone, Serum:   <5 ng/mL. For medical use only  
Acetaminophen Therapeutic Range: 10-25 ug/mL
Acetaminophen toxic level 4 hours after ingestion: >200 ug/mL
Acetaminophen toxic level 12 hours after ingestion: >50 ug/mL

Performed
Tuesday, Thursday

Turnaround Time2-5 days
Test CodeLORCE
CPT-4 Code (s)
80361, 80329 (G0480)
LOINC Codes
Hydrocodone   3680-6  
Acetaminophen   3298-7  

Warde
Medical
Laboratory