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Causeway Methadone DAU4 Routine

Test Code
CAUS METHADONE DAU4 ROUTINE


Alias/See Also
Chemistry


Includes
Benzodiazapine screen
Cocaine screen
Methadone screen
Opiates screen
Creatinine
pH
Specific Gravity


Preferred Specimen
Random urine


Minimum Volume
5 mL


Transport Temperature
Refrigerate


Specimen Stability
Refrigerated (2-8°C): 5 days
Freeze at -20°C or colder if not tested within 5 days.


Methodology
EIA

Setup Schedule
M-F


Report Available
TAT 1 -3 days


Reference Range
Analyte Reference range
Benzodiazapine screen Screen Negative
Cocaine screen Screen Negative
Methadone screen Screen Negative
Opiates screen Screen Negative
pH 4 - 10
Specific gravity 1.003 - 1.020
Creatinine > 20 mg/dL


Performing Laboratory
Test performed at West Roxbury Chemistry Lab
Contact: Jonathan Dryjowicz-Burek 857-203-5973


Last Updated: February 25, 2026


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.