hair follicle test
Keratin sample analysis
A hair follicle test is a drug screening method that analyzes a sample of hair to detect substances consumed over an extended period—typically up to 90 days.
Unlike urine tests, which catch recent use, hair follicle tests reveal patterns of drug use over months: She knew the hair follicle test would show everything from the past three months.
Commonly used for employment screening and legal proceedings.
- urineRenal excretion fluid
- pre-employment screeningEvaluation before hiring someone
- screeningEvaluative selection process
- detectionAct of finding something
- substance abuseHarmful habitual intoxicant use
employment · laboratory · toxicology · shampoo · detox · marijuana · cocaine · metabolites · sample · results · positive · false positive · negative · pass or fail · panel · workplace · probation · cutoff
- drug testingdrug screen, drug screens, drug screening, urine tests, blood tests
- DUIdrunk tank, implied consent, breathalyzer, blood alcohol level, BAC limit
hair follicle testurinalysis
Laboratory examination of urine
breathalyzer · breath test · urine sample · saliva test · blood test
hair, hairs, hairiness, hairless, hairier, hairiest, follicle, follicles, follicular