Some employers choose to build their drug-free workplace programs by leveraging multiple specimen types such as oral fluid, urine, and hair. This diversity allows for accurate, reliable, flexible options that can help to meet a variety of program goals and objectives. Hair drug testing in particular, with its longer window of detection, can detect repetitive drug use for up to 90 days. The ability for a hair drug test to produce a long-term drug use history leads many employers to question whether a hair drug test can consistently and effectively detect one-time drug use.
The simple answer is probably not. Jarod Rowland, Laboratory
Supervisor at Quest Diagnostics, specializes in hair testing technology.
Rowland explained the strengths and limits of hair tests.
“One of the stand-out benefits of hair drug testing is its
sensitivity and its long window of detection of up to 3 months of prior drug
use. Because of this, hair testing is often referred to as a ‘lifestyle test.’ However,
that long look-back window is not necessarily the best way to detect a single
instance of drug use in scenarios like post-accident testing. Instead, hair
testing is more informative of a repeated pattern of drug usage during the broader
detection window. The detection of a single drug-use event is complicated by
the extremely small percentage of the total dose incorporated into the growing
hair during that single use event.”
If employers want to detect recent drug use, oral fluid or
urine testing may be better suited to provide these results. Because detection
windows vary by specimen type, some savvy employers incorporate a combination
of specimen types into their policies and programs to more effectively detect
drug use in a variety of circumstances. Drug-free workplace programs play an important
role in helping businesses to combat rising drug use in the workplace. When
building a program, consider that the different specimen types tout unique
benefits and a better fit for certain drug testing reasons.
To learn more, watch our webinar as we comb through the science of hair testing or connect with us online.
Some employers choose to build their drug-free workplace programs by leveraging multiple specimen types such as oral fluid, urine, and hair. This diversity allows for accurate, reliable, flexible options that can help to meet a variety of program goals and objectives. Hair drug testing in particular, with its longer window of detection, can detect repetitive drug use for up to 90 days. The ability for a hair drug test to produce a long-term drug use history leads many employers to question whether a hair drug test can consistently and effectively detect one-time drug use.
The simple answer is probably not. Jarod Rowland, Laboratory Supervisor at Quest Diagnostics, specializes in hair testing technology. Rowland explained the strengths and limits of hair tests.
“One of the stand-out benefits of hair drug testing is its sensitivity and its long window of detection of up to 3 months of prior drug use. Because of this, hair testing is often referred to as a ‘lifestyle test.’ However, that long look-back window is not necessarily the best way to detect a single instance of drug use in scenarios like post-accident testing. Instead, hair testing is more informative of a repeated pattern of drug usage during the broader detection window. The detection of a single drug-use event is complicated by the extremely small percentage of the total dose incorporated into the growing hair during that single use event.”
If employers want to detect recent drug use, oral fluid or urine testing may be better suited to provide these results. Because detection windows vary by specimen type, some savvy employers incorporate a combination of specimen types into their policies and programs to more effectively detect drug use in a variety of circumstances. Drug-free workplace programs play an important role in helping businesses to combat rising drug use in the workplace. When building a program, consider that the different specimen types tout unique benefits and a better fit for certain drug testing reasons.
To learn more, watch our webinar as we comb through the science of hair testing or connect with us online.