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Test ID FOXFU Oxycodone - Free (Unconjugated), Serum

Specimen Required

Draw blood in a plain, red-top tube(s). (Serum gel tube is not acceptable.) Spin down and send 2 mL of serum refrigerate in a preservative-free plastic vial.

Method Name

High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Oxycodone-Free (Unconjugated), S

Specimen Type

Serum Red

Specimen Minimum Volume

0.7 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 30 days
  Ambient  30 days
  Frozen  30 days

Reference Values

Reporting Limit determined each analysis.


Oxycodone - Free (ng/mL)


Adult therapeutic range: 13 - 120 ng/mL

Day(s) Performed

Monday through Sunday

Report Available

6 to 8 days

Performing Laboratory

NMS Labs

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FOXFU Oxycodone-Free (Unconjugated), S 12789-4


Result ID Test Result Name Result LOINC Value
Z3526 Oxycodone-Free 12789-4

Test Classification

This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the U.S. Food and Drug Administration.