Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is now regarded as a potent instrument for identifying drug and alcohol intake. By capturing biomarkers within the hair fiber, hair presents a long-term record of alcohol and drug use. When taken from near the scalp, it offers approximately a 3-month window for detecting alcohol and drug use. Hair collection is straightforward, relatively tamper-resistant, and convenient for transportation.
A 1.5-inch segment of around 200 hairs near the scalp (akin to a #2 pencil dimension) amounts to 100mg — the perfect quantity for screening and verification. For EtG applications, supplementary tests, and analyses over 10 panels, a 150mg sample is advisable. We suggest using a jeweler’s scale for specimen weighing. If head hair isn't available, an equivalent amount of body hair can be used. References to head hair pertain to scalp hair only, whereas body hair encompasses all other types (facial, axillary, etc.).
Process Overview
The procedure for lab processing of drug test outcomes involves four essential stages: Accessioning, Screening, Extraction, and Confirmation.
Accessioning entails the primary handling of a specimen into a lab’s database. It involves confirming the sample’s proper sealing and transport, allotting a random LAN (Laboratory Accessioning Number), and filling any additional data not covered by an electronic chain of custody framework.
Screening is a preliminary, rapid evaluation for drugs of abuse. Although Screening is an economical approach to exclude drug use for most specimens, court-admissibility requires positive results to be validated. Specimens with presumptive positives in Screening necessitate a follow-up confirmation.
If a specimen shows a presumptive positive during Screening, additional hair from the initial sample is subjected to Extraction. At this phase, drugs are extracted from hair at significantly lower concentrations than in methods like urine or oral fluid, making hair drug testing one of the most challenging methodologies to execute.
Positive results from Screening undergo Confirmation using GC/MS, GC/MS/MS, or LC/MS/MS techniques. Necessary presumptive positive specimens receive a wash before Confirmation. The full laboratory process from Accessioning to Confirmation is subject to scrutiny under both the CAP (College of American Pathologists) Hair accreditation and ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Although colloquially termed "hair follicle tests", the analysis targets the hair strand, not the follicle located beneath the scalp.
In Alpine, TX, hair follicle testing surpasses urine tests in various ways.
Our hair follicle testing in Alpine, TX offers an extended detection window up to 90 days.
Hair follicle tests in Alpine, TX present a tamper-resistant method for sample testing.
Experience convenient testing across Alpine, TX and nationwide.
In Alpine, TX, our process is simple and confidential.
Our testing services in Alpine, TX offer affordable pricing and fast turnaround.
Our hair follicle tests in Alpine, TX deliver fast, accurate, and reliable results.
Employers in Alpine, TX achieve compliance and peace of mind with hair follicle testing.