The primary focus of LabCorp Corporate Solutions is to provide consistently good service. For customer convenience, the following online forms are designed to direct your inquiries appropriately.
Request LabCorp Corporate Solutions sales assistance
Telephone: 800-343-8974 (voicemail)
For occupational testing set up or for additional information on our services, contact a LabCorp Corporate Solutions sales representative.
Order drug testing supplies
Allows LabCorp clients to order drug and alcohol testing supplies (LabCorp account number required).
Request customer service
Allows LabCorp clients to submit request for customer service assistance to LabCorp’s Occupational Testing Services customer operations department.
Federal Regulatory Resources
- US Department of Transportation (DOT) Office of Drug and Alcohol Policy and Compliance
- Department of Health and Human Services (HHS) Substance Abuse and Mental Health Services Administration (SAMHSA) Contains Current Certified Labs List
- Department of Health and Human Services (HHS) Substance Abuse and Mental Health Services Administration (SAMHSA) Mandatory Guidelines for Federal Workplace Drug Testing Programs
- Substance Abuse and Mental Health Services Administration (SAMHSA) Alcohol, Tobacco, and Other Drugs
- American Association of Medical Review Officers (AAMRO)
- Medical Review Officer Certification Counsel (MROCC)
Drugs of Abuse
Web Tools FAQs
What are LabCorp Corporate Solutions Web Tools?
LabCorp Corporate Solutions Web Tools are a suite of web-based applications that enables customers to view specimen status and final results, retransmit specimen results, view laboratory-scanned chain of custody (COC) form images, and register donors for drug screen specimen collection at a Web COC-capable site. LabCorp Corporate Solutions includes the Web COC tool that guides specimen collectors through each step of the collection process to produce a non-federally-regulated COC form on-site.
How does LabCorp Corporate Solutions Web Tools save my company time?
The LabCorp Corporate Solutions Web Tools inquiry functions reduce time spent contacting the laboratory for specimen status, chain of custody form copies, and retransmission of results. The Web COC electronic specimen collection application eliminates the need to order or stock pre-printed non-federally-regulated chain of custody forms for urine, hair, oral fluid, and rapid drug tests. LabCorp Corporate Solutions' Web COC collection process provides real-time negative rapid drug screen results so that employers can make same-day hiring decisions. LabCorp Corporate Solutions takes the guesswork out of drug test collections status with the donor registration function, including email notification of specimen collection completion or donor no-show.
What computer skills are needed to use LabCorp Corporate Solutions Web Tools?
How does the user access LabCorp Corporate Solutions Web Tools?
What specimen information may be obtained through LabCorp Corporate Solutions Web Tools?
LabCorp Corporate Solutions Web Tools registered users are given access to data according to the user role and access rights indicated on the user registration form by the authorized company representative. Depending on user access rights, a user may view specimen status descriptions or test result information for reported specimens. Only the designated medical review officer (MRO) is able to access result information for regulated specimens.
Is the nitrite test threshold based on body functions, or does it allow for infection, food ingestion with high nitrates, and water consumption with high nitrites?
The nitrite or oxidant threshold level established by the federal government is 200 mg/mL. This is based on the level at which a drug screen may be impacted by this type of adulterant and is higher than what would be expected from normal physiological processes. Nitrites or other oxidants > = 200 mg/mL are reported as “Invalid”. Specimens with nitrite levels > = 500 mg/mL are reported as “Adulterated”.
How would a drug test be evaluated when nitrites are 199 mg/mL?
What is methamphetamine "d" and "l" isomer testing?
Methamphetamine is available in two forms: "d" and "l." These compounds are stereoisomers (chemical mirror images). They have the same chemical formula and similar chemical properties. The "d" form is a prescription stimulant and appetite suppressant. The "l" form is available over-the-counter as the active ingredient of the Vick's inhaler and is a metabolite of certain prescription medications. Both "d" and "l" forms test positive by both immunoassay and most confirmation assays; a special d,l isomer confirmation test is available to determine how much of each form is present in a specimen.1
What do the percentages mean in methamphetamine "d" and "l" isomer test results?
In order to help determine whether a methamphetamine positive may be due to an illicit source, it is helpful to determine the percentage of "d" and “l” isomers. For example, following an individual's use of Vick's Vapor Inhaler, the expected result would be nearly 100% "l" methamphetamine. Based on current laboratory guidelines, if the laboratory report indicates more than 80% "l" methamphetamine, the results are consistent with Vick's Vapor Inhaler use or one of the prescription medications metabolized to l-methamphetamine. If the laboratory reports more than 20% "d" methamphetamine present, the result indicates the use of "d" methamphetamine as either a prescription or illicit preparation. Illegally-produced methamphetamine and amphetamine may contain mixtures of "d" and "l" isomers. LabCorp recommends use of a medical review officer (MRO) to review all non-negative test results.1