Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing has gained recognition as an effective method for identifying drug and alcohol consumption. Hair captures a prolonged record of substance use by embedding biomarkers within the strands as they grow. When collected near the scalp, hair can offer a detection window of up to around 3 months for alcohol and drugs. Hair is straightforward to collect, relatively challenging to tamper with, and simple to transport.
A 1.5-inch segment consisting of roughly 200 hair strands (similar in diameter to a #2 pencil) located closest to the scalp will yield 100mg, which is the optimal sample size for screening and verification. For EtG, additional tests, or panels exceeding 10, it is advisable to collect 150mg. It is recommended to use a jeweler’s scale for measuring the specimen. If scalp hair cannot be obtained, an equivalent quantity of body hair may be used. When discussing head hair, it refers exclusively to scalp hair. Body hair encompasses all other hair types (facial, axillary, etc.).
Process Overview
The procedure for processing a drug test result in the laboratory consists of four primary steps: Accessioning, Screening, Extraction, and Confirmation.
During Accessioning, a sample is first processed into the lab’s system. This step involves checking that the sample is properly sealed and transported, assigning a random LAN (Laboratory Accessioning Number), and completing any data entry not covered by an electronic chain of custody system.
Screening involves a rapid preliminary test for substances of abuse. Although Screening cost-effectively excludes drug use across most samples, a positive result must be confirmed to stand in legal proceedings. Any samples with a presumptively positive result in Screening must undergo further verification.
If a sample tests presumptively positive at the Screening phase, additional hair is taken from the initial sample for Extraction preparation. At this point, substances are extracted from hair at a significantly lower concentration than other methods (e.g., urine or oral fluid), highlighting the complexity of conducting hair drug screening.
Confirmation of any positive result from Screening is executed through GC/MS, GC/MS/MS, or LC/MS/MS techniques. All samples that are presumptive positive are washed before confirmation as necessary. The entire laboratory process, from Accessioning to Confirmation, is reviewed following both the CAP (College of American Pathologists) Hair designation standards and accreditation to ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Though commonly termed "hair follicle tests", these tests assess the hair strand rather than the follicle located beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in Penn Valley, CA
Hair follicle testing offers superior detection accuracy over traditional urine tests. This method detects drug use over a more extended period, providing a clearer picture of usage patterns. Employers and legal systems favor hair tests for their comprehensive and unbiased results, often revealing substance use that urine tests might miss.
Extended Detection Window in Penn Valley, CA
One of the distinctive benefits of hair follicle testing in Penn Valley is its capability to detect substance use for up to 90 days. This extensive detection window offers employers a thorough review of an individual's drug history, presenting a much clearer perspective than standard tests.
Tamper-Resistant Testing Method in Penn Valley, CA
Hair follicle tests provide a significant advantage in sample integrity. By reducing the potential for sample adulteration, these tests guarantee reliable results. Tampering with a hair test is notably challenging, offering greater confidence in the outcomes.
Convenient Nationwide Testing Locations and Local Locations in Penn Valley, CA
Enjoy the convenience of accessing hair follicle testing services throughout numerous locations across Penn Valley and nationwide. Our extensive network ensures that obtaining a reliable and efficient test is hassle-free, providing fast and easy service when you need it most.
Simple, Confidential Process in Penn Valley, CA
Our hair follicle testing process in Penn Valley is designed for simplicity and confidentiality. From ordering the test to obtaining the results, every step prioritizes privacy and ease. This straightforward approach alleviates concerns and enhances the user experience.
Affordable Pricing and Fast Turnaround in Penn Valley, CA
Our competitive pricing ensures that high-quality drug testing services are accessible to businesses of all sizes in Penn Valley. Coupled with fast turnaround times, our services provide exceptional value, enabling efficient decision-making and peace of mind.
Fast, Accurate, and Reliable Results in Penn Valley, CA
When it comes to precision, hair follicle drug tests stand out in Penn Valley. Their ability to detect substance use with high accuracy ensures that you receive the most reliable results in the shortest time. The efficient process allows for quick turnaround without compromising on the thoroughness of the screening.
Compliance and Peace of Mind for Employers in Penn Valley, CA
Utilizing hair follicle testing supports employers in maintaining drug-free workplaces. By adhering to the highest compliance standards, businesses can reduce legal risks and enhance overall safety. This method ensures peace of mind with its reliable enforcement of workplace policies.
