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Home > MDT Site Support > MDT F.A.Q.
MDT F.A.Q.
Frequently Asked Questions
Frequently Asked Questions for Drugs of Abuse Testing
Listed below are some of our most frequently asked questions concerning drugs of abuse testing. Various links are provided throughout this page for assistance with further research.
Q Are rapid drug tests as accurate as A GC/MS SAMHSA Lab test?
A Our drug tests are qualitative, which means it only determines the presence of drugs at detection limits comparable to SAMHSA cut-off concentration. GC/MS, which costs more, quantifies the concentration of drugs in the sample. Given the purposes of most drug testing (pre-employment, post-accident, random) is to detect the presence of drug use and not determine the amounts ingested, our rapid drug test satisfies the needs of almost all Drug Screening Programs. SAMHSA's Website

Q What is the shelf life on the rapid drug tests?
A Our test devices have a shelf life of 18 months from the date of manufacture. The expiration date of each Lot of devices is indicated on each individual foil pouch and can be used until that date. Upon date of purchase, one should have from 6 to 18 months, to be able to stock and use the product.


Q Do the results hold up in court?
A Rapid drug tests provide only a preliminary analytical test result. A more specific alternate chemical method must be used in order to obtain a confirmed analytical result- gas chromatography (mass spectrometry) (GC/MS) is the preferred confirmatory method. Any result taken to court, must be confirmed by a SAMHSA certified Lab. SAMHSA's list Of Certified Labs For GC/MS Testing

Q Are there any legal medications that can trigger positive results?
A Yes. The most common problem is the pseudoephedrine in many over-the-counter sinus and cold medications, which can cause a positive result for methamphetamine. A GC/MS confirmation as well as a MRO review is necessary to determine the source of the positive result. Some forms of the drugs we test for may be available legally under prescription as well. Click here to go to our Drug Index Page

Q How accurate are the test results?
A Laboratory test results for drugs of abuse have indicated a greater than 97% accuracy when used according to the step-by-step instructions that are provided with the test.

Q How long do drugs stay in the system?
A Amphetamines………………………………2-6 days
Barbiturates…………………………………3-8 days
Benzodiazepines……………………………2-14 days
Cannabis……………………………………14-30 days
Cocaine………………………………………2-5 days
Methadone…………………………………2-8 days
Methamphetamines…………………………2-6 days
Opiates…………………………………………2-5 days
PCP……………………………………………3-8 days
Tricyclic Antidepressants……………………10 days

Q What are the screening cutoff Levels?
A The screening cutoff levels on our tests are consistent with those of SAMHSA.
Amphetamines………………………………………1000 ng/ml
Barbiturates………………………………………………300 ng/ml
Benzodiazepines……………………………………300 ng/ml
Cannabis……………………………………………………50 ng/ml
Cocaine……………………………………………………300 ng/ml
Methadone………………………………………………300 ng/ml
Methamphetamines……………………………1000 ng/ml
Opiates…………………………………………………2000 ng/ml
PCP……………………………………………………………25 ng/ml
Tricyclic Antidepressants……………………1000 ng/ml

Q What is the difference between Methamphetamine and Amphetamine?
A Both amphetamine and methamphetamine are potent symphathominetic agents. Methamphetamine is the parent drug. It metabolizes into amphetamine in the body. Methamphetamine and/or amphetamine are excreted in the urine. Go to Drug Index Page for more info.

Q Are Morphine, Opiates, and Heroin the same kind of drug?
A Yes, they are all tested using the Opiates(Rapid Response) or Morphine (Instant-View) test. These drugs are from the same family of drugs. Drug Index Page for more Info.

Q Which category covers Ecstasy?
A Methamphetamines. StreetDrugs.Org: Photographs and drugs of abuse information

Q Are rapid drug tests as accurate as A GC/MS SAMHSA Lab test?
A Our drug tests are qualitative, which means it only determines the presence of drugs at detection limits comparable to SAMHSA cut-off concentration. GC/MS, which costs more, quantifies the concentration of drugs in the sample. Given the purposes of most drug testing (pre-employment, post-accident, random) is to detect the presence of drug use and not determine the amounts ingested, our rapid drug test satisfies the needs of almost all Drug Screening Programs. SAMHSA's Website

Q What is the shelf life on the rapid drug tests?
A Our test devices have a shelf life of 18 months from the date of manufacture. The expiration date of each Lot of devices is indicated on each individual foil pouch and can be used until that date. Upon date of purchase, one should have from 6 to 18 months, to be able to stock and use the product.


Q Do the results hold up in court?
A Rapid drug tests provide only a preliminary analytical test result. A more specific alternate chemical method must be used in order to obtain a confirmed analytical result- gas chromatography (mass spectrometry) (GC/MS) is the preferred confirmatory method. Any result taken to court, must be confirmed by a SAMHSA certified Lab. SAMHSA's list Of Certified Labs For GC/MS Testing

Q Are there any legal medications that can trigger positive results?
A Yes. The most common problem is the pseudoephedrine in many over-the-counter sinus and cold medications, which can cause a positive result for methamphetamine. A GC/MS confirmation as well as a MRO review is necessary to determine the source of the positive result. Some forms of the drugs we test for may be available legally under prescription as well. Click here to go to our Drug Index Page

Q How accurate are the test results?
A Laboratory test results for drugs of abuse have indicated a greater than 97% accuracy when used according to the step-by-step instructions that are provided with the test.

Q How long do drugs stay in the system?
A Amphetamines………………………………2-6 days
Barbiturates…………………………………3-8 days
Benzodiazepines……………………………2-14 days
Cannabis……………………………………14-30 days
Cocaine………………………………………2-5 days
Methadone…………………………………2-8 days
Methamphetamines…………………………2-6 days
Opiates…………………………………………2-5 days
PCP……………………………………………3-8 days
Tricyclic Antidepressants……………………10 days

Q What are the screening cutoff Levels?
A The screening cutoff levels on our tests are consistent with those of SAMHSA.
Amphetamines………………………………………1000 ng/ml
Barbiturates………………………………………………300 ng/ml
Benzodiazepines……………………………………300 ng/ml
Cannabis……………………………………………………50 ng/ml
Cocaine……………………………………………………300 ng/ml
Methadone………………………………………………300 ng/ml
Methamphetamines……………………………1000 ng/ml
Opiates…………………………………………………2000 ng/ml
PCP……………………………………………………………25 ng/ml
Tricyclic Antidepressants……………………1000 ng/ml

Q What is the difference between Methamphetamine and Amphetamine?
A Both amphetamine and methamphetamine are potent symphathominetic agents. Methamphetamine is the parent drug. It metabolizes into amphetamine in the body. Methamphetamine and/or amphetamine are excreted in the urine. Go to Drug Index Page for more info.

Q Are Morphine, Opiates, and Heroin the same kind of drug?
A Yes, they are all tested using the Opiates(Rapid Response) or Morphine (Instant-View) test. These drugs are from the same family of drugs. Drug Index Page for more Info.

Q Which category covers Ecstasy?
A Methamphetamines. StreetDrugs.Org: Photographs and drugs of abuse information
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