Tag: hair follicle drug test cutoff levels
Common questions about hair testing
An expert from Quest Diagnostics answers some of the most common questions about hair drug testing.
Back to basics webinar series: hair drug testing
Untangling the benefits of this drug testing type, Quest experts provide insightful information in our webinar, Back to basics: hair drug testing.
Ask the Experts: Hair drug test specimens
Our experts explain how a hair drug test specimen can be taken from other parts of the body if someone is lacking hair or is bald.
Quest comments for hair specimen mandatory guidelines
HHS published an RFI seeking comments for federally-mandated hair drug testing. Here are our comments in response to the questions posed by HHS.
Detect repetitive drug use with hair testing
Hair testing is a method many employers rely on to help identify periodic and habitual drug use by applicants and employees.
Hair drug testing resources
Quest Diagnostics offers additional resources about hair testing for illicit drug use at HairTesting.com.
Hair testing from a leader in science and service
Hair testing provides up to a 90-day detection of repetitive drug use, which can act as a powerful drug use deterrent.