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Category: Hair Drug Test

5-Panel Hair Drug Test: Why it's the Best

By Sandra Shinn
June 11, 2014 Category • Drug Testing, Hair Drug Test

Hair tests are the absolute best way to stop drugs in the workplace. Quest Diagnostics is the worlds leading provider of diagnostic information services. They state that hair testing detects nearly twice the number of positives as a urine test. Unlike urine drug testing, which may only detect drug use within the past 2-3 days, hair testing is able to detect a pattern of repetitive drug use for up to 90 days. While urine testing is well suited to detect recent drug use for post-accident or reasonable suspicion testing, a hair test is the most effective way to evaluate long-term patterns of use, making it an excellent option for a pre-employment or random testing program. Positive test results are confirmed using gas chromatography/mass spectrometry (GC/MS), or in the case of marijuana gas chromatography/mass spectrometry/mass spectrometry (GC/MS/MS), and are usually returned within 48 to 72 hours. With urine drug tests, the positivity rates are often less than 4%. The hair test with