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Test Code TXSCR TOXICOLOGY SCREEN, URINE

Important Note

1. The screen is less sensitive than the confirmation assay.  If it is known that the patient is on a specific medication, please order:

  • TXAMN If amphetamines are "not detected", the specimen will be sent for quantitative amphetamine determination/confirmation test by GC-MS at an additional charge or order AMUR (as an add-on test if screening is negative).
  • TXBEN If benzodiazepines are "not detected", the specimen will be sent for quantitative benzodiazepine determination/confirmation test by GC-MS at an additional charge or order BENUR (as an add-on test if screening is negative).
  • TXOPN If opiates are "not detected", the specimen will be sent for quantitative opiate determination/confirmation test by GC-MS at an additional charge or order OPUR (as an add-on test if screening is negative).

2. This panel does not detect methylphenidate (Concerta, Methylin, Ritalin, Medikinet, Equasym XL).  Please order test code METHL (a separate send out test).

3. This panel does not detect certain synthetic opiates.  Please order separate tests/panels that contain the specified drug name in the title:

  • Buprenorphine (Buprenex, Suboxone)
  • Meperidine (Demerol)
  • Tapentadol (Nucynta)
  • Tramadol (Tradol, Ultram, Ultracet)

Performing Laboratory

NorDx Laboratories

Useful For

Detecting drugs of abuse. Positive test results are presumptive and are not confirmed.

Specific gravity, pH, creatinine, and oxidants will be performed and reported at no additional charge to identify potential adulteration of the urine specimen.

This test is intended for clinical monitoring and management of patients. It is not intended for non-medical use such as employment or forensic testing.

Method Name

Enzyme Immunoassay (EIA)

Reference Values

Not Detected

Screening Cutoff Concentration:

Amphetamines: 500 ng/mL

Barbiturates: 200 ng/mL

Benzodiazepines: 200 ng/mL

Cocaine (benzoylecgonine – cocaine metabolite): 300 ng/mL

Fentanyl: 1 ng/mL

Methadone: 300 ng/mL

Methadone metabolite: 1000 ng/mL

MDMA: 500 ng/mL

Opiates: 300 ng/mL

Oxycodone: 100 ng/mL

Phencyclidine: 25 ng/mL

Propoxyphene: 300 ng/mL

Tetrahydrocannabinol carboxylic acid: 50 ng/mL

For help with interpretation please call: 877-323-0045

Days and Times Test Performed

Monday through Friday

Report Available

1 Day

Specimen Type

Urine, Random

Preferred Container

Urine Cup

Preferred Volume

Urine, Random: 25 mL (Urine Cup)

Minimum Volume

Urine, Random: 10 mL (Urine Cup)

Specimen Collection and Handling

Collect random urine and send refrigerated in a clean, non-sterile urine container.

Click here to view the Urine Aliquoting Guide for Processing

Specimen Stability Information

Specimen Type: Urine, Random

Frozen: 30 Days

Refrigerated: 7 Days

Add On Capable

Yes

Advance Beneficiary Notice Requirements

This test, when ordered on Medicare patients, is subject to the National Coverage Determination (NCD) policies. Please verify that the diagnosis code (ICD code) you have chosen demonstrates medical necessity for the test as documented in the physician’s patient record. The CMS web site is available to assist you with this verification. A properly executed Advance Beneficiary Notice (ABN) must be submitted with the specimen if medical necessity is not demonstrated by the ICD code chosen.

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer

80307 Drug Test, Presumptive Screening, By Instrument Chemistry (i.e Immunoassay, Chromatography, and Mass Spectrometry)  

Keywords

DRUGS OF ABUSE

Performing Laboratory Location

NorDx Laboratories