Toxicology Service
GTI provides comprehensive urine drug testing with screening and confirmation for both prescription and illicit drugs. Using LC-MS/MS, the gold standard in drug analysis, our laboratory delivers accurate, reliable results on over 110 compounds. All testing is backed by strict validation procedures and interpreted by experienced, certified toxicology directors. With urine testing offering a longer detection window and clear metabolite identification, providers gain the insight needed to ensure patient safety and compliance with prescribed medications.
Drug Test Offerings
Antidepressants
- Desmethylvenlafaxine
- Hydroxybupropion
- Trazodone
- Venlafaxine
Antidepressants, Serontonergic Class
- Citalopram
- Duloxetine
- Fluoxetine
- Paroxetine
- Sertraline
Antidepressants, Tricyclic & Other Cyclicals
- Amitriptyline
- Desipramine
- Doxepin
- Imipramine
- Nortriptyline
Antiepileptics
- Lamotrigine
AntiPsychotics
- Aripiprazole
- Quetiapine
Amphetamines
- Amphetamine
- Methamphetamine
- Phenetermine
Akaloids
- 7-Hydroxymitragynine
- Cotinine
- Mitragynine
- Xylazine
Barbiturates
- Butalbital
- Phenobarbital
Benzodiazepines
- 7-Aminoclonazepam
- Alpha-Hydroxymidazolam
- Alpha-Hydroxyalprazolam
- Alprazolam
- Lorazepam
- Nordiazepam
- Oxazepam
- Temazepam
Buprenorphine
- Buprenorphine
- Norbuprenorphine
Cannabinoids, Natural
- THCA
Cocaine
- Benzoylecgonine
Gabapentin
- Gabapentin
Fentanyls
- Carfentanil
- Fentanyl
- Norfentanyl
Heroin Metabolite
- 6-MAM
Ketamine
- Ketamine
- Norketamine
Methadone
- EDDP
- Methadone
Methylenedioxymethamphetamine
- MDMA
Methlyphenidate
- Ritalinic Acid
Muscle Relaxants
- Carisoprodol
- Cyclobenzaprine
- Meprobamate
Opiates
- Codeine
- Hydrocodone
- Hydromorphone
- Morphine
- Norhydrocodone
Opioid Antagonists
- Dextromethorphan
- Meperidine
- Naloxone
- Naltrexone
Oxycodone
- Noroxycodone
- Oxycodone
- Oxymorphone
Phencyclidine
- PCP
Sedatives/Hypnotics
- Zolpidem
Tapentadol
- Tapentadol
Tramadol
- Tramadol
- O-Desmethyltramadol
Pregabalin
- Pregabalin
Drug Screening
- Amphetamine
- Barbiturate
- Benzodiazepine
- Benzoylecgonine
- Buprenorphine
- Methadone
- Opiate
- Oxycodone
- Phencyclidine
- THC
Reflexive Alcohol Testing
- Ethyl Glucuronide
- Ethyl Sulfate
In accordance with standard of care and to assure urine validity,GTI is REQUIRED to test creatinine, PH, specific gravity, and oxidants.
- Creatinine
- Oxidants
- pH
- Specific Gravity
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