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FAQ's

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.

Are rapid drug tests as accurate as A GC/MS SAMHSA Lab test? 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.

What is the shelf life on the rapid drug tests?

Our test devices have a shelf life of 12 to 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.

Do rapid test results hold up in court?
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

Are there any legal medications that can trigger positive results?
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.

How accurate are the test results?
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.

How long do drugs stay in the system?


Urine Method

Amphetamines 2-6 days
Barbiturates 3-8 days
Benzodiazepines 2-14 days
Cannabis 14-30 days
Cocaine 2-5 days
Ecstasy 1-3 days
Methadone 2-8 days
Methamphetamine 2-6 days
Opiates 2-5 days
Phencyclidine 3-8 days
Tricyclic Antidepressants 10 days

Saliva Method

Amphetamines up to 72 Hours
Barbiturates up to 48 hours
Benzodiazepines up to 48 hours
Cocaine up to 24 hours
Marijuana up to 14 hours
Methamphetamine up to 72 hours
Methadone up to 48 hours
Opiates up to 21 hours
Ecstasy up to 48 hours

How long does alcohol stay in the human system?
Up to 12 hours depending on the amount of alcohol consumed.

Testing Methods for alcohol and individual detection times:

Saliva Method: 1-12 hours / Urine Method: 6-12 Hours

Nicotine (Tobacco Smoking)
Saliva Method: 4-6 hours / Urine Method: up to 14 days depending on usage.

What are the screening cutoff Levels?
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
Methamphetamine 1000 ng/ml
Opiates 2000 ng/ml
Phencyclidine 25 ng/ml
Tricyclic Antidepressants 1000 ng/ml

What is the difference between Urine and Oral Fluid Testing?
Please click to see our Urine & Oral Fluid Comparison article

What is the difference between Methamphetamine and Amphetamine?

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.

Are Morphine, Opiates, and Heroin the same kind of drug?

Yes, they are all tested using the Opiates(Rapid Response) or Morphine (Instant-View) test. These
drugs are from the same family of drugs.

Which category covers Ecstasy?

Methamphetamine.

Is it possible to cheat the iCup® drug screen by substituting or adulterating the specimen?

No. The iCup® A.D. contains a specimen validity test or SVT strip that verifies the validity of a
specimen. The SVT strip checks for oxidants, specific gravity and pH in the specimen. For example, if
someone tries to substitute water for urine, the specific gravity indicator will show an abnormal
reading.

How long are the results valid after administering the tests?
The amount of time for results to remain stable varies according to the rapid test device. Please visit
our library section or call us directly for more information.

Is there any specific way these products need to be stored? Do they have to be refrigerated?

All drug test devices can be stored at room temperature up to the date of expiration printed on the
individual foil pouch. They cannot be stored in extreme heat or cold and must remain sealed in the foil
pouch until use.

What is the minimum amount of specimen needed for a conclusive test result?

It is always important to collect a sufficient amount of specimen in case of a non-negative result. The
confirmation laboratory requires a minimum of 15mL of specimen but prefers 30mL for urine testing. For
saliva, it is 2mL.

Does the product need to be disposed of in any special way, such as a bio hazard bag?

Urine and oral drug screens do not pose a bio hazard risk and can be disposed of in regular waste receptacles.

Are there products that can be used in the tests to give a false negative? What can be done to avoid
this?

Although there are only a small handful of products that can be used to change the result of an impending test, there are validity screens available which can detect these adulterants. Some are integrated into the tests, such as the iCup®, which has built-in adulteration available, and we also
have individual adulteration strips.

Do you have to confirm a non-negative result? If so, how is this done?
Rapid Detect Inc. strongly recommends that a SAMHSA certified laboratory confirm all non-negative results. Please call us directly for assistance.

Are any of your drug tests FDA Cleared?
All of our urine tests have an FDA 510k clearance except for the new K2 Test Kit, which is waiting for FDA 510 (k) clearance.

Is there specific training required to administer these drug tests?
Although there is no official training required to administer the tests, procedure cards are provided as well as, instructional videos, drug test interpretation quizzes and certificates of completion free of charge.