Gas Chromatography/Mass Spectrometry (GC/MS)
Hydrocodone, unconjugated: 10 - 100 ng/mL; Hydromorphone, unconjugated: 1 - 30 ng/mL; Dihydrocodeine, unconjugated: not established.
5 - 11 days
- Hydromorphone, Serum
- Dihydrocodeine, Serum
Collect a trough specimen in a green top or red top tube; do not use SST tube. Centrifuge, aliquot plasma or serum into a plastic vial and refrigerate.
Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.