Test Catalog

Drugs of Abuse (Add-on)

Test Code: T56

An analyte specific screen and LC-MS/MS quantitative test for select drugs of abuse.

Analytes Tested

  • 4-ANPP
  • 6-Acetylmorphine
  • Acetyl fentanyl
  • Amphetamine
  • Benzoylecgonine
  • Buprenorphine
  • Cocaethylene
  • Cocaine
  • Codeine
  • Fentanyl
  • Methamphetamine
  • Morphine
  • Naloxone
  • Norbuprenorphine
  • Norfentanyl


Ultra-High-Pressure Liquid Chromatography (UHPLC) coupled to Triple Quadrupole tandem Mass Spectrometry (QqQ MS/MS).

Assay Availability

Screening for this assay is setup Mon., Wed., and Fri. while quantitative confirmations are run Mon-Fri.

Results Reported

Typically, ≤ 4 business days from receipt for negative reports. For positive, quantitative reports ≤ 8 business days TAT from receipt.

Acceptable Matrices

Vitreous Fluid; 1 x 5 mL no-additive tube (red top). Any non-retrievable specimen will be considered.


Stored at 4oC until testing is completed. Long term storage of samples (1 year) is stored at -20oC.

Causes for Rejection

  • Identifiers on the specimen DO NOT match, when compared with the requisition.
  • Specimen handling has compromised the integrity of the specimen (e.g., not stored, or prepared according to testing requirements; frozen specimens and specimens fixed/processed in alternative fixatives)

Specimen quality is compromised at or beyond ability to complete testing and provide accurate results (i.e., quality not sufficient [QNS]).

Laboratory Contact

For further information, please call the MolecularDx Laboratory at 814-361-6997 or email info@molecdx.com.

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