With over 35 testing centers in the Greenwood area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.
In Greenwood, AR, laboratories are equipped to dissect drug metabolites using sophisticated techniques such as chromatography combined with mass spectrometry to ensure accurate results. This is achieved by first separating these metabolites using either gas chromatography (GC-MS) or liquid chromatography (LC-MS). Gas chromatography is ideal for volatile substances, while liquid chromatography handles other compounds. Mass spectrometry follows to decipher the mass-to-charge ratio of ionized particles, thereby locking in the identity and quantity of each compound.
The Stage-by-Stage Analysis:
Sample Preparation: The protocol begins with the acquisition of a biological specimen, be it blood or urine. For instance, urine samples may need adjustment of creatinine levels to accurately reflect metabolite concentration. Chromatographic Separation:
Mass Spectrometry:
Identification and Quantification: Mass spectrometry outputs are evaluated to detect and measure the metabolites. The signals correlate directly to the concentration of these substances. This precision often leads scientists to employ LC-MS/MS or GC-MS for validation tests, offering a counterbalance to potential inaccuracies during preliminary screens.
Alternative Approaches:
Within Greenwood, AR, diverse types of drug tests employ various biological specimens to detect substance usage across different timelines. Among them, urine testing stands as the predominant choice, closely followed by examinations of hair, saliva, blood, breath, and even sweat. Each serves tailored purposes, such as pinpointing either recent or extensive historical usage.
The optimal test method is contingent on the particular objectives at hand, intertwined with the desired detection window length. Consequently, the choice of testing modality is influenced by specific situational demands and expected outcomes.
In Greenwood, AR, urine drug testing stands out as the most common and economical choice for detecting drug use.
Detection window: Depending on the substance, the range typically spans from a few days to a week; for chronic users of marijuana, this might extend up to 30 days or more.
Best suited for: Situations involving random testing, pre-employment screenings, and circumstances warranting reasonable suspicion, as they are most effective for identifying recent substance use.
Drawbacks: The sample's susceptibility to tampering is a notable disadvantage compared to other collection techniques.
In Greenwood, AR, hair analysis offers extensive traceability concerning past drug consumption.
Detection window: Covers up to 90 days for most drugs. Due to slower body hair growth, extended detection periods might apply.
Best for: Excellent for uncovering historical drug patterns or during safety-critical employment evaluations.
Drawbacks: Although insightful, this process is pricier and more time-consuming, ineffective for recognizing immediate drug usage, with drug-metabolized hair needing approximately a week to surface from the scalp.
In Greenwood, AR, the oral fluid test, or saliva testing, utilizes a simple mouth swab collection.
Detection Window: Generally registers between 24-48 hours for most substances, albeit longer for certain drugs.
Best for: Pinpointing immediate or ongoing drug use, notably in post-incident or reasonable doubt circumstances. Given the non-complex, unobtrusive, and observed collection, it minimizes tampering.
Drawbacks: Shorter detection span and potentially diminished accuracy for some substances compared to urine or blood testing.
In Greenwood, AR, blood tests necessitate intravenous sample collection for drug analysis.
Detection window: Very brief, typically spanning minutes to hours, as drugs are swiftly metabolized and exit the bloodstream.
Best for: Essential in critical situations such as overdose emergencies or when gauging immediate impairment.
Drawbacks: Most invasive and expensive method, with a narrow detection window, limiting its general screening utility.
Employed frequently within Greenwood, AR's law enforcement framework, breath tests are key for alcohol detection through respiratory analysis.
Detection Window: This method effectively traces alcohol ingestion across a span of up to 24 hours.
Best For: A quintessential choice for establishing blood alcohol concentration, particularly at roadside inspections aimed at gauging current intoxication or impairment levels.
Drawbacks: Its scope is limited exclusively to alcohol and exhibits an intrinsically short detection window.
In Greenwood, AR, sweat testing employs a skin-adhered patch that accumulates sweat over time.
Detection window: It provides an aggregated metric of drug usage spanning several days to weeks.
Best for: Continuous supervision, such as for those on parole or engaged in rehab programs.
Drawbacks: There is potential for environmental contamination, and this method is not as frequently utilized as others.
**Urine testing is the best developed and most commonly used monitoring technique in substance abuse treatment programs. This appendix describes procedures for implementing this service and other methods for detecting clients' substance use. The Substance Abuse and Mental Health Services Administration (SAMHSA) has a number of documents about drug testing available in the Workplace Resources section of its Web site, www.samhsa.gov.
Greenwood, AR recognizes that THC is absorbed into body tissues and processed by the liver into its metabolites 11-hydroxy-THC and carboxy-THC.
Approximately 65% of cannabis is eliminated via feces with around 20% departing through urine. The remainder is sequestered in bodily tissues.
For chronic marijuana users, THC accumulates in fatty tissues faster than its elimination rate, possibly leading to positive tests long after initial consumption.
With highly lipid-soluble characteristics, THC exhibits a prolonged half-life, impacting the Greenwood, AR community through protracted presence in the body. This duration hinges on marijuana consumption patterns. Research suggests 1.3 days as the half-life for infrequent users, whereas habitual consumption extends this between 5 and 13 days.
Consequently, drug screening outcomes vary significantly based on the type of sample analyzed, and detection timelines differ accordingly.
Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!
Sarah Patterson - 4/8/2025
I ran into a situation because the Guthrie had closed and I had to go to well care and they were right on it. I had no problems when I called to get connected with welcare everything worked out and I didn't even have to wait.they were polite and talked with the receptionist for me once I got them on the phone.
Sayre - 8/19/2024
The visit here is always the best . The place is always really clean. The employees are super courteous, very polite, and professional. This is the only drug lab I like to go do my drug and alcohol test. I would like to tell them thank you so much for thier excellent performance and job
Eli Gonzalez - 1/4/2025
Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!
Riley Wilson - 2/18/2025
Everyone has been quick to respond, polite, informative. It's been easy to order tests. I would recommend them to anyone to use.
April Rogers - 2/15/2025
Had very fast and good service, was able to get an appointment same day with the nearest facility. My questions were answered thoroughly but quick. Definitely recommend
Jacob Matzke - 11/19/2024
I reached out Accredited Drug Testing/Secure Screenings to partner for my drug testing business (Discovery Diagnostics Columbia SC) and the process was extremely easy. I worked with Sicilia who was amazing. She was friendly & knowledgeable, and answer all of my questions with ease.
Kendra Harley - 3/26/2025
They were very helpful in finding a place to get tested on the route back home! They made a difficult time seem easy with no judgement!
Anne Creden - 11/19/2024
This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.
Jason Jackson - 7/19/2025
Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.
Madison Sanderford - 8/19/2024
