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hair drug testing related FAQs

  • Why use Hair Drug Testing rather than Urinalysis (Urine Drug Test)?
  • What are the most important benefits and advantages of Hair Drug Testing versus Urine Drug Screening?
  • How quickly after drug use can drugs be detected by hair drug testing?
  • What is the shortest time window that can be accurately detect drug use in hair drug testing?
  • Can hair drug tests be run on people with little or no hair?
  • Does the body hair give the same type of results as head hair in testing for drugs?
  • What is Hair Drug Testing and How does it work?
  • How is the tests in the TestCountry Hair Drug Testing Program done?
  • What drugs are included in a standard TestCountry Hair Drug Screening Test?
  • How long of a drug use detection time period does a standard TestCountry hair drug test cover?
  • Are hair drug testing laboratories required to have FDA approval?
  • How fast does head hair grow and how much hair is needed for hair drug testing?
  • How does TestCountry Lab Based Hair Drug Testing Program compare to instant urine drug test kits?
  • How soon after drug use can a drug be detected by TestCountry hair drug testing?
  • What is the shortest time period that can be accurately evaluated by TestCountry hair drug testing?
  • Can TestCountry hair drug tests be run on people with little or no hair?
  • Does the body hair give the same type of results as head hair in TestCountry hair drug testing?
  • Can hair collected from a brush be used in TestCountry hair drug testing?
  • Do all Laboratories used by TestCountry Hair Drug Testing Program perform GC/MS confirmation of all positive hair results?
  • How much hair is needed for TestCountry hair drug testing?
  • Can Hair be affected by cross-reacting substances such as over-the-counter medications and would that effect hair drug testing results?
  • How effective is TestCountry Hair Drug Testing in detecting drug users compared to urine drug testing?
  • Does external exposure to certain drugs, like marijuana or crack smoke, affect the TestCountry Hair Drug Test results?
  • Is the chain of custody forms used in the TestCountry hair drug testing program comparable to laboratory test procedures used for the corporate urine drug testing?
  • What is done with the excess hair that is not tested?
  • What other drugs are available to be tested in hair drug testing analysis?
  • How fast does the hair on my head grow?
  • How long does my hair sample have to be?
  • What if my hair isn’t long enough?
  • What if I would like to test for drugs back farther than 90 days?
  • How is hair drug testing for a longer timeframe done?
  • Will I be charged for the additional hair drug testing?
  • Can I use body hair instead of head hair for my drug test?
  • How should I differentiate head and body hair samples?
  • Can I give a mixed sample of head and body hair?
  • Is it possible to do two different hair drug tests with different hair length to determine the approximate length of drug use?
  • Is it possible for someone to bleach or use shampoo to trick and pass hair drug tests that you sell?
  • Will the hair drug test just a yes/no answer or will it be more detailed such as, drugs are present in the past month, or past 3 months?
  • What is the lowest level of detectable marijuana that the saliva drug test will capture?
  • How far back does hair drug testing go back for marijuana and cocaine?
  • My son tends to shave his head. For your hair drug testing kit, can I use hair from other parts of the body?
  • What drugs does a hair drug test screen for?
  • What time period does the Hair drug test cover?
  • How does the hair drug test work?
  • How fast does head hair grow?
  • How soon after use can a drug be detected in hair drug tests?
  • Can drug tests be run on people with little or no hair?
  • What is the shortest time period for hair drug test that can be accurately evaluated?
  • Does external exposure to certain drugs, like Marijuana or crack smoke, affect the hair drug test results?
  • Can hair be affected by cross-reacting substances such as over-the-counter medications in drug testing?
  • Does hair color affect test results?
  • Can hair collected from a hairbrush be used for hair drug testing?
  • How does Hair Drug Testing compare to urine drug tests or saliva tests on the market?
  • How effective is Hair Drug Testing in detecting drug users?
  • How long will it take to receive the hair drug test results?
  • How will I read the hair drug test results?
  • What is Hair Drug Testing?
  • What type of drugs can be detected in a standard hair test?
  • What are the different methods of Drug testing?



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