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Test Code UOPDS or LAB2279 Drug Screen Urine Opioids (Opiates, Buprenorphine, Methadone, Oxycodone, Fentanyl)

Important Note

Drug screens performed at Bronson Laboratory are for medical purposes only. No chain of custody or specimen adulteration testing is performed. All positive results are presumptive. A presumptive positive means that this screening method is positive. A more specific alternative method must be used to obtain a confirmed analytical result. Confirmatory testing is available on request through our reference lab, Mayo. Clinical consideration and professional judgment should be applied to any drug of abuse test result, particularly with presumptive positive results.

If employment/legal drug screening is required, contact ProHealth Management Services at 269-341-7547.

Profile Information

Test ID

Reporting Name

Available Separately?

Always Performed?

UOP

 Opiate Screen

Y

Y
UBUP Buprenorphine Screen

Y

Y
UMTD Methadone Screen

Y

Y
UOXY Oxycodone Screen

Y

Y
UFNT Fentanyl Screen

Y

Y

Specimen Requirements

Container Type:

Sterile urine cup

 

 
Optimal Collection Volume: 

5 mL
Minimum Volume:

1 mL
Collection Instructions:

1. Collect a random urine specimen from the patient.

2. Ensure the lid is secured tightly before sending it to the lab.

3. Ensure that no preservatives are used.
Specimen Transport:

Refrigerate
Processing Instructions: 

1. Pour off urine into a labeled aliquot tube.

2. Centrifuge the urine aliquot.

3. Deliver the urine aliquot to the chemistry department.

Specimen Stability

Specimen Type Temperature Time
Urine Refrigerated 5 days

Specimen Rejection Criteria

Adulterated urine specimen

Useful For

Detecting drug abuse involving one or more of the following drugs:

  • Opiate
  • Buprenorphine
  • Methadone
  • Oxycodone
  • Fentanyl

Methodology

  • Opiate - Roche Cobas: Kinetic interaction of particles in solution (KIMS)
  • Buprenorphine and Methadone - Bio-Rad TOX/See: Lateral flow chromatographic immunoassay
  • Oxycodone and Fentanyl - Roche Cobas: Homogeneous enzyme immunoassay

Reference Ranges

Negative

Interpretive

Test ID

Methodology Comment
UOP

This assay detects morphine at concentrations of 300 ng/mL and higher. Codeine and heroin are also detectable. This assay is less sensitive to hydrocodone, which is detected only at high concentrations.

 

This assay does NOT detect other opioid analgesics. Specifically, it does not detect methadone, fentanyl, oxycodone, buprenorphine, or propoxyphene. If there is a question of therapeutic compliance or abuse of these drugs, a test for the specific drug of interest should be ordered.
UBUP

This assay detects buprenorphine at levels of 10 ng/mL and greater. Concentrations of free buprenorphine and norbuprenorphine in urine may be less than 1 ng/mL after therapeutic administration but can range up to 20 in abuse situations.
UMTD

This assay detects methadone at levels of 300 ng/mL and higher. High levels of doxylamine (50,000 ng/mL) may also be detected.
UOXY

This assay detects oxycodone and/or oxymorphone at levels of 100 ng/mL and higher.
UFNT

This assay detects fentanyl at 3.8 ng/mL and higher. Structural analogs of fentanyl are also detectable. The major metabolite norfentanyl is detectable at 5 ng/mL.

Day(s) Performed

24/7

Expected TAT

Same day

Performing Laboratory

Bronson Laboratory, Chemistry - Kalamazoo

Sample Retention Time

7 days

CPT Code

80305, 80307

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