hair test
Follicle drug screening
A hair test is a drug screening method that analyzes a hair sample for traces of substances.
Because drugs leave metabolites in hair follicles as hair grows, a hair test can detect drug use over a longer period than urine or blood tests—typically up to 90 days.
She passed the urine test but failed the hair test.
- follicleSkin cavity growing strands
- strandThin fiber piece
- drugActive chemical compound
- screeningEvaluative selection process
- sampleSubset for study
toxicology · roots · analysis · laboratory · detection · cocaine · marijuana · keratin · specimen · shampoo · detox · employment · court · urine · panel · chain of custody · metabolite · workplace
- hiring testsskills assessment, skill assessment, drug screening, background check, criminal check
- sobrietysober, sobriety, abstinence, abstinent, abstainer
- drug testingdrug screen, drug screens, drug screening, urinalysis, pre-employment screening
- drug testsurinalysis, dipstick, toxicology screen, breathalyzer, pre-employment
- drug enforcementDEA, drug bust, narcotics, drug raid, interdiction
- lab testsCBC, urinalysis, complete blood count, blood chemistry, bloodwork
drug testing methodology
hair testurinalysis
Laboratory examination of urine
urine sample · blood test · saliva test · breath test · sweat test
hair, test, hairs, haired, hairy, hairier, hairiest, hairiness, hairless