Blood Drug Screen: Results Timeline | AMH Nationwide
Blood Drug Screen Results Timeline for Fast, Reliable Reporting
Blood drug screen results timeline typically ranges from 24 to 72 hours after sample collection. Non-negative results undergo confirmation testing by a certified Medical Review Officer, which can extend processing time. Delays may occur due to specimen transport or additional testing requirements. Call (877) 731-6362 for detailed scheduling and questions.
What is the typical turnaround time for blood drug screen results?
The blood drug screen results timeline usually spans 1 to 3 business days from the time of collection to the delivery of initial results. Samples are collected at authorized sites and routed to one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. Each lab processes specimens promptly to ensure timely reporting.
How does the testing process affect the blood drug screen results timeline?
After collection, the blood specimen is securely transported to the assigned laboratory. The lab performs an initial immunoassay screen to detect the presence of drugs or metabolites. Negative results are typically reported within 24 to 48 hours. If the screen is non-negative, the specimen undergoes confirmatory testing using sophisticated methods such as gas chromatography-mass spectrometry (GC-MS), which requires additional time.
What happens when a blood drug screen is non-negative?
A non-negative blood drug screen triggers confirmation testing to verify the presence and concentration of specific substances. This process can add 2 to 5 business days to the results timeline. Additionally, a certified Medical Review Officer reviews all non-negative results to ensure accuracy and interpret findings, which is part of the standard process.
What factors can delay blood drug screen results?
Several factors may extend the blood drug screen results timeline. These include delays in specimen transport to the laboratory, the need for additional testing due to complex drug panels, or the requirement for further medical review. Testing for rare or less common substances can also increase processing time.
Need Blood Drug Screen Results Fast?
Contact AMH Nationwide to schedule your test and get clear expectations on your blood drug screen results timeline. Call (877) 731-6362.
How does DOT-regulated testing affect the blood drug screen results timeline?
For DOT-regulated safety-sensitive positions, blood drug screens must follow the federally certified urine protocol under 49 CFR Part 40. While hair testing may be used for non-DOT roles, blood testing for DOT purposes adheres to strict chain-of-custody and procedural requirements. This can add steps but generally does not extend the typical 24 to 72-hour results timeline.
How do I arrange blood drug screen testing and understand the timeline?
AMH Nationwide provides the laboratory order and directs you to a collection site within the national lab networks. There is no online ordering. To schedule testing or inquire about expected turnaround times for specific panels, call (877) 731-6362. Processing times vary by panel and detection window, so contacting AMH will provide the most accurate information.
Common Questions
Initial results from a blood drug screen are generally available within 24 to 48 hours after the sample reaches the lab, assuming a negative screen.
Confirmation testing for non-negative blood drug screens typically adds 2 to 5 business days to the results timeline due to advanced analysis and Medical Review Officer evaluation.
Yes, delays in transporting the specimen from the collection site to the lab, caused by logistics or weather, can extend the overall turnaround time.
No, only specimens with non-negative initial screens undergo confirmation testing. Negative results usually do not require further analysis.
DOT testing follows strict protocols but generally maintains a similar 24 to 72-hour timeline. The urine protocol under 49 CFR Part 40 is mandatory for DOT, while hair testing is for non-DOT roles.
Call AMH Nationwide at (877) 731-6362 to get a lab order and be directed to a nearby collection site. They will provide details on expected blood drug screen results timeline.
Ready to get started?
AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us.


