Hair follicle drug testing provides a method of detecting substance use over a longer period compared to urine or blood tests. The expense associated with this type of analysis is influenced by several factors, including the laboratory performing the test, the number of substances being screened for, and any additional services requested, such as confirmation testing. For example, a basic panel screening for common drugs of abuse may differ in price from a comprehensive panel that includes less frequently used substances.
The significance of hair follicle testing lies in its ability to provide a historical record of drug use, typically covering a period of approximately 90 days. This extended detection window offers advantages in various situations, such as pre-employment screening, court-ordered testing, and monitoring compliance with treatment programs. The relative stability of drugs within the hair shaft contributes to the reliability and accuracy of the test results, making it a valuable tool in assessing past substance use patterns.
