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ProResults FAQ


When considering a drug testing program, the first question to ask is, "Am I required to drug test some or all of my employees?

" If not, then ask, "Are there other reasons I should consider drug testing?"

Below are some of the most frequent reasons employers give for having a drug testing program:

-To comply with Federal regulations, e.g., the DOT, Dept. of Defense, U.S. Coast Guard, and the Department of Energy

-To comply with customer or contract requirements

-To comply with insurance carrier requirements

-To match other employer efforts, and to minimize the chance of hiring employees who may later be users

-To reinforce the company position on "no drug use"

-To identify current users and abusers and refer them for assistance

-To establish grounds for discipline or firing

-To improve safety

-To convince "casual users" that the cost of using is too high

-To deter "recreational" drug use that could lead to addiction

-To reduce the costs of alcohol and other drug abuse in the workplace

-To give recovering users another reason to stay sober (relapse prevention)

Source: Making Your Workplace Drug Free: A Kit For Employers, Employer Tip Sheet #9, Drug Testing , Substance Abuse and Mental Health Services Administration (SAMHSA)


Here you will find answers to commonly asked questions about drug tests and drug use, details which can help determine how our drug tests

can work for you. If you have any further questions, please contact our customer service, we will do our best to answer them. 512-374-9977

  • Why is a drug test required?

The purposes of most drug testing (pre-employment, post-accident, school, random) is to detect the presence of drug use.

Qualitative urine tests are used to quickly screen the sample for the presence of abused drugs.

If the sample is positive for a certain drug, further testing is available if requested.

Proresults can send the sample to the laboratory for GC/MS quantitative analysis.

  • What is a drug screening test?

A screening test is a rapid diagnostic test that gives you a qualitative (visual) results for presence or absence of the drug.

These are also called positive / negative tests interpreted by the number of lines that are present.

  • Are the rapid drug tests as accurate as GC/MS?

Urine drug tests are qualitative screening devices, which means they only determine the presence of drugs at detection

limits comparable to SAMHSA cut-off concentration.

GC/MS (Gas Chromatography / Mass Spectrometry) is a laboratory technique that uses sophisticated equipment quantifies

the concentration of drugs in the sample. This technique takes time and is more expensive.

ProResults offers GC/MS confirmation to clients that want to know the exact amount of a drug found in an employee's specimen.

Substance abuse takes a heavy toll on American business.

Drug use in the workplace costs employers approximately $81 billion each year in lost productivity

(U.S. Department of Labor). Drug abuse can seriously compromise the integrity and stability of your workplace.

Let us help you set up a pre-employemnt drug screening account today.

Top 7 Reasons to Drug Test

1.) Pre-Employment
2.) Reasonable Cause
3.) Post Accident
4.) Random Testing
5.) Return to Duty
6.) Periodic
7.) Post Positive Follow-Up

Drug Retention Chart for Urine**

Amphetamines, Methamphetamines 2-3 Days
Barbiturates, Long Acting (phenobarbital) 1-3 Weeks
Barbiturates, Short Acting (secobarbital) 2-3 Days
Benzodiazepines (Valium, Librium, etc.) 1-2 Weeks
Cocaine 2-3 Days
Marijuana 30-45 Days
MDMA 2-4 Days in the urine
Methadone 1-3 Days in the urine
Opiates (Codeine, Morphine, Heroin, Percocet, Demerol) 2-4 Days
Phencyclidine (PCP, Angel Dust) 1-7 Days

**NOTE: These are ONLY APPROXIMATIONS for detection periods based on a urine drug test.

Drug detection depends on the amount of the drug ingested, the amount of time since use,

the individual's metabolic rate and the amount of fluid intake.

Because of these variables, the times presented on this page are only a general guideline

and should only be used for information purposes.


Controlled Substance Act

Office of Diversion Control

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