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Drug Testing Services
Our Drug Testing Services At a Glance
- Extensive drug testing panels to help meet each customer's need
- Largest national network of collection sites
- A national network of toxicology laboratories
- Adulterant testing with TestSure™
- Steroid athletic drug testing for athletes
- Healthcare professional profile (testing for prescription drugs among healthcare professionals)
- Medical Review Officers (MRO) review of all Department of Transportation specimens
Our Drug Testing Services
As the leader in this field, we perform over 10 million substance abuse tests annually and have:
- A dedicated workforce of more than 800 employees
- National network of laboratories specializing in forensic toxicology testing
- A national network of Quest Diagnostics owned patient service centers, with an additional network of third party collection sites
- Standardized processes
- Dedicated customer service department
How Drug Testing Works
All substance abuse specimens submitted to Quest Diagnostics are initially tested using a screening technique called Enzyme Immunoassay (EIA). This method of screening is objective, computerized and automated.
Laboratory Locations
Quest Diagnostics has a national network of laboratories throughout the United States. Our drug testing laboratories are certified by HHS/SAMHSA. Our sales representatives develop a specific testing site plan to meet the unique needs of each company and its employees.
Turn Around Time
95% of negative results are reported within 24 hours of receipt into our laboratories. The remaining 5% of negatives and all positives are reported within 72 hours of receipt into our laboratories.
When to drug test
While pre-employment drug screening is a good practice and a great start to a drug free workplace drug program, it is only the first step in creating and maintaining a drug free, cost effective, highly productive workplace. Random testing, voluntary testing, reasonable suspicion testing, specific condition testing and follow-up testing are all equally important types of drug testing.
Test Panels
In addition to the federally mandated NIDA panel, Quest Diagnostics offers a variety of test panels and cut off levels, which can be combined with TestSure™ adulterant testing. Adulterant testing detects substances (either added to the urine specimen or ingested) that are promoted as "cleansing agents" to prevent the detection of drug use.
Standard Test Panel
| Drug Group | EIA Screen Cut Off Level *ng/mL** | GC/MS Conf. Detection Level *ng/mL** |
| Amphetamines | 1000 | 500 |
| Cocaine Metabolites | 300 | 150 |
| Marijuana Metabolites | 50 | 15 |
| Opiate Metabolites | 2000 | 2000 |
| Phencyclidine |
*These are the standard outer ranges . Additional outer ranges may be available.
**nanograms/milliliter - The above cut-off levels, list of analytes, and test methodologies are subject to adjustment when required by applicable government regulations or guidelines.
8555 North Dixie Drive
Dayton, OH 45414
(800) 759-4255