Drug Testing Locations - Redcrest, CA

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

9 Drug-Testing Centers in Redcrest

Minutes Away, Test Today

3302 Renner Dr16.09 miles

3302 Renner Dr
Fortuna, CA 95540

3116 Harrison Ave28.24 miles

3116 Harrison Ave
Eureka, CA 95503

2460 Buhne Street,28.59 miles

2460 Buhne Street,
Eureka, CA 95501

1915 Harrison Ave Ste A28.88 miles

1915 Harrison Ave Ste A
Eureka, CA 95501

4038 Brookwood Dr30.46 miles

4038 Brookwood Dr
Bayside, CA 95524

592 14th St33.53 miles

592 14th St
Arcata, CA 95521

1225 Central Ave Ste 237.42 miles

1225 Central Ave Ste 2
Mckinleyville, CA 95519

1585 Heartwood Drive Ste B38.24 miles

1585 Heartwood Drive Ste B
Mckinleyville, CA 95519

850 N Highway 9641.34 miles

850 N Highway 96
Willow Creek, CA 95573

Employment, DOT, Court Ordered, Probation, Family

At our 9 Redcrest locations, Accredited Drug Testing delivers all-inclusive drug and alcohol assessments. We cater to personal, corporate, and legal requisites with DOT and non-DOT urine testing, breath alcohol assessments, EtG alcohol evaluations, and hair drug analysis. In Redcrest, CA, we offer swift test results and certified SAMSA lab analysis, with services offered the very same day. Typically, our Redcrest facilities are just a short distance from where you live or work. Furthermore, we specialize in Occupational Health Testing, Clinical Examinations, and Background Checks.

Dial (800) 221-4291 or proceed with online registration. To initiate, select your test type, pick a convenient venue—testing services accommodate individuals, staff, or others. Setting up a test is quick and hassle-free; contact our scheduling team or book it yourself online, anytime. Our seamless system ensures a straightforward arrangement of drug testing near Redcrest.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

Redcrest, CA Drug Testing

Drug Testing Services Available at Our Redcrest, CA Labs:

At our Redcrest drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Drug Testing in Redcrest, CA

Redcrest, California Statistics

In Humboldt County, CA, home to Redcrest, 7% of residents reported illicit drug use in the past month.

Humboldt County saw a 20% increase in opioid-related hospitalizations from 2018 to 2020.

Methamphetamine use accounted for 35% of all drug treatment admissions in Humboldt County in 2019.

25% of Humboldt County's drug-related deaths in 2021 involved fentanyl.

In Redcrest, CA, drug-induced death rates stood at 18 per 100,000 population as of 2020.

How does the body eliminate Drugs

Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.

Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.

A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.

Issues of Concern

Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.

Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.

Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.

Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.

Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.

The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.

Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.

Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.

Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.

Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears

Employers in Redcrest, CA & Drug Testing Policies

Redcrest, CA, employers emphasize maintaining a drug-free workplace through rigorous drug testing policies. Businesses typically follow guidelines from the U.S. Department of Labor, implementing pre-employment and randomized drug testing as part of their safety protocols. This is critical for ensuring workforce reliability and performance.

Moreover, local employers often partner with organizations specializing in occupational health services to administer drug tests effectively. Compliance with state regulations is rigorously maintained, as outlined by the California Department of Industrial Relations, ensuring fairness and coherence with workers' rights legislation.

Government Efforts with Drug Problems in Redcrest, CA

The government in Redcrest, CA, and Humboldt County has initiated several programs to curb drug abuse. Agencies like the Humboldt County Department of Health & Human Services partner with local organizations to offer prevention and treatment services. The state government's California Department of Public Health also supports county-specific initiatives to address the opioid crisis through education and outreach programs.

Federally funded programs via the Substance Abuse and Mental Health Services Administration provide additional resources to local health providers. Law enforcement agencies are actively working to implement harm reduction strategies and crack down on illicit drug trafficking in and around Redcrest.

Local Drug Busts & News in Redcrest, CA

Redcrest, CA, has witnessed several significant drug-related events in recent years contributing to the community's call for reinforced law enforcement efforts. Local authorities, with the support of Humboldt County's Narcotics Task Force, carried out a large-scale drug bust in 2022, seizing multiple kilograms of methamphetamine and various opioids.

Community meetings often address drug-related issues, fostering local involvement in finding preventive solutions. Information shared during these events puts a spotlight on the critical need for increased public awareness and systemic changes to combat ongoing drug issues within Redcrest and its surrounding areas.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Redcrest, CA. Trusted by employers nationwide for accurate results and exceptional service.

California DOT/Non DOT Physicals

California Vision Tests

California Audiograms

California Respirator Fit Tests

California Lift Tests

California Background Checks

Resources & Citations

Alcohol and Drug Program, California

Alcoholics Anonymous

Narcotics Anonymous

Partnership Health Plan of California

Substance Use Disorder Legal Information Exchange

California Department of Health Care Services, Substance Use Disorder Services

Association of Recovery Schools

State of California - Department of Justice - Prescription Drug Abuse Prevention

Redcrest Drug Testing

Quickly find trusted local drug testing centers in Redcrest, CA — fast, convenient, and reliable every time!

Redcrest DOT Drug Testing

Quickly find a local DOT drug testing center in Redcrest, CA — fast, reliable, convenient nationwide service!

Redcrest DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Redcrest, CA.

Redcrest Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Redcrest, CA.v

Redcrest Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Redcrest, CA locations—results you can trust, every time!

Redcrest Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Redcrest, CA.

Redcrest Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Redcrest, CA.

Redcrest 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Redcrest, CA employers and individuals nationwide.

Redcrest 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Redcrest, CA workplace and personal testing needs.

Redcrest On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Redcrest, CA workplace compliant.

Redcrest DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Redcrest, CA drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

Yes. Accredited Drug Testing maintains access to numerous collection sites nationwide, so in most cases a testing location is available close to a donor’s home, workplace, or job site. Same-day scheduling is often possible for both drug and alcohol testing needs.
Employers, DOT-regulated companies, attorneys, courts, probation departments, and private individuals all use Accredited Drug Testing locations. You do not need to be part of a large company to request testing — individuals can order testing directly.
Locations support urine drug tests, hair follicle drug tests, saliva/oral fluid drug tests, instant/rapid screening (where permitted), and evidential breath alcohol testing. Post-accident and reasonable suspicion testing are also available.
Yes. Accredited Drug Testing supports DOT-compliant urine drug testing and evidential breath alcohol testing following 49 CFR Part 40 requirements. This includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing for safety-sensitive employees.
In many cases, yes. Same-day or next-day appointments can typically be arranged. This is especially important for urgent needs such as post-accident, reasonable suspicion, court deadlines, or probation compliance.
Yes. Results are released only to the authorized recipient — for example, an employer’s designated representative, the court or probation contact, or the individual who ordered the test. Results are handled securely and are suitable for policy enforcement and legal documentation.
Yes. Accredited Drug Testing offers on-site and mobile collections for employers. Mobile testing is useful for post-accident response, reasonable suspicion situations, high-volume hiring events, and remote job sites where sending employees offsite would cause downtime.
No. You do not need a physician's prescription to request most drug or alcohol tests. Individuals, employers, attorneys, and probation officers can schedule testing directly and send the donor to the assigned collection site.

Customer Reviews

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024


(800) 221-4291