Naltrexone, MS Confirm, Urine, Medication Assisted Treatment (MAT)

TEST: 702518
Test number copied
CPT: 80362
Print Share

Expected Turnaround Time

4 - 7 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Specimen Requirements

Specimen

Urine

Volume

30 mL

Minimum Volume

15 mL

Container

Urine bottle

Collection

Random urine

Storage Instructions

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.

Stability Requirements

• Room temperature: 5 days

Causes for Rejection

Insufficient volume; no ID on container; urine from preservative tube

Test Details

Use

This test is used to confirm the presence of naltrexone. Please note this test is designed specifically for monitoring patients who are on Suboxone™/buprenorphine or naltrexone only. This testing should not be used for monitoring chronic pain patients (medical drug monitoring) or methadone medication assisted treatment.

Limitations

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

Methodology

Mass spectrometry

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
702518 Naltrexone, MS, Ur, MAT Pending 702542 OPIATE ANTAGONIST N/A
702518 Naltrexone, MS, Ur, MAT Pending 702543 Naltrexone 18334-3

For Providers

Please login to order a test

Order a Test

© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.

CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf