Drug Testing Locations - Parkwood, CA

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

36 Drug-Testing Centers in Parkwood

Minutes Away, Test Today

363 East Almond Avenue, Suite 1071.10 miles

363 East Almond Avenue, Suite 107
Madera, CA 93637

509 S I St Ste A1.87 miles

509 S I St Ste A
Madera, CA 93637

344 W 6th St2.08 miles

344 W 6th St
Madera, CA 93637

2339 W Cleveland Ave Ste 1033.63 miles

2339 W Cleveland Ave Ste 103
Madera, CA 93637

2370 W Cleveland Ave3.64 miles

2370 W Cleveland Ave
Madera, CA 93637

1250 E Almond Ave Po Box 13287.55 miles

1250 E Almond Ave Po Box 1328
Madera, CA 93637

4739 W. Shaw Ave, Suite 10412.72 miles

4739 W. Shaw Ave, Suite 104
Fresno, CA 93722

5649 N Palm Ave15.36 miles

5649 N Palm Ave
Fresno, CA 93704

5550 N Palm Ave Ste 10715.44 miles

5550 N Palm Ave Ste 107
Fresno, CA 93704

222 W Shaw Ave16.37 miles

222 W Shaw Ave
Fresno, CA 93704

7265 N 1st St Ste 10516.39 miles

7265 N 1st St Ste 105
Fresno, CA 93720

6101 N Fresno St Ste 10316.45 miles

6101 N Fresno St Ste 103
Fresno, CA 93710

6042 N Fresno St Ste 10116.58 miles

6042 N Fresno St Ste 101
Fresno, CA 93710

7300 N Fresno St Oak 1 Bldg16.65 miles

7300 N Fresno St Oak 1 Bldg
Fresno, CA 93720

1245 E Herndon Ave16.92 miles

1245 E Herndon Ave
Fresno, CA 93720

7075 N Maple Ave, Ste 10417.93 miles

7075 N Maple Ave, Ste 104
Fresno, CA 93720

7005 N Maple Ave Ste 10418.00 miles

7005 N Maple Ave Ste 104
Fresno, CA 93720

755 N Peach Ave Ste C1319.18 miles

755 N Peach Ave Ste C13
Clovis, CA 93611

1350 O Street Suite 10119.45 miles

1350 O Street Suite 101
Fresno, CA 93721

2023 Divisadero St,19.45 miles

2023 Divisadero St,
Fresno, CA 93701

2113 Merced St19.47 miles

2113 Merced St
Fresno, CA 93721

2911 Tulare St19.93 miles

2911 Tulare St
Fresno, CA 93721

2746 E Jensen Ave21.48 miles

2746 E Jensen Ave
Fresno, CA 93706

2555 S East Ave21.56 miles

2555 S East Ave
Fresno, CA 93706

5361 E Kings Canyon Rd23.04 miles

5361 E Kings Canyon Rd
Fresno, CA 93727

5612 Bisqustone24.76 miles

5612 Bisqustone
Fresno, CA 98710

On--site Only25.72 miles

On--site Only
Fresno, CA 93737

2570 Jensen Ave, Suite 11530.52 miles

2570 Jensen Ave, Suite 115
Sanger, CA 93657

2502 Jensen Ave30.57 miles

2502 Jensen Ave
Sanger, CA 93657

48677 Victoria Ln,34.91 miles

48677 Victoria Ln,
Oakhurst, CA 93644

1850 Whitson St34.95 miles

1850 Whitson St
Selma, CA 93662

510 W Main St Ste E35.05 miles

510 W Main St Ste E
Merced, CA 95340

1122 Rose Ave, Ste 235.34 miles

1122 Rose Ave, Ste 2
Selma, CA 93662

374 W Olive Ave Ste A35.65 miles

374 W Olive Ave Ste A
Merced, CA 95348

3070 M St Ste 1135.75 miles

3070 M St Ste 11
Merced, CA 95348

394 E Yosemite Ave35.98 miles

394 E Yosemite Ave
Merced, CA 95340

Employment, DOT, Court Ordered, Probation, Family

At our 36 Parkwood, California branches, Accredited Drug Testing delivers extensive drug and alcohol testing services. We administer both DOT and non-DOT urine tests, breath tests for alcohol, EtG testing, and hair follicle tests, accommodating personal, corporate, and legal demands. In Parkwood, CA, we provide quick result testing and SAMSA certified lab analysis, with same-day options accessible and numerous locations near your residence or office. We also offer Occupational Health Testing, Clinical Testing, and Background Verification.

Dial (800) 221-4291 or register via the web. Pick your required test and a nearby facility—testing is possible for yourself, your staff, or someone else. Scheduling is quick and straightforward; contact our scheduling team or arrange your test online any time, any day. Our efficient and easily navigable system enables effortless arrangement of drug testing services close to Parkwood.

* 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.

Parkwood, CA Drug Testing

Drug Testing Services Available at Our Parkwood, CA Labs:

At our Parkwood 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 Parkwood, CA

Parkwood, California Statistics

Parkwood, located in Madera County, CA, reported a 15% increase in drug-related arrests in 2022.

In 2022, Parkwood, Madera County, saw a 10% rise in overdose incidents compared to 2021.

The local health department recorded 50 cases of opioid-related hospital admissions in Parkwood, CA, in 2022.

Parkwood, Madera County, had a 20% increase in juvenile drug offenses in 2022.

Madera County Health Department noted a 12% rise in methamphetamine use cases in Parkwood, CA, in 2022.

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 Parkwood, CA & Drug Testing Policies

In Parkwood, CA, local employers are increasingly adopting stringent drug testing policies to ensure a safe working environment. These measures are in accordance with guidelines from the U.S. Department of Labor.

Employers have implemented random drug testing and mandatory screenings during the hiring process to deter drug use. This approach aligns with state guidelines on substance abuse management in the workplace.

Government Efforts with Drug Problems in Parkwood, CA

The government in Parkwood, CA, is actively addressing the drug issue with comprehensive strategies, involving local law enforcement and community programs. Federal initiatives, such as those by the DEA, provide support for local efforts.

State resources from the California Department of Public Health are also utilized to create awareness and provide necessary resources to combat the drug crisis in the area.

Local Drug Busts & News in Parkwood, CA

Recent drug-related events in Parkwood, CA, include a significant bust where local authorities seized large quantities of narcotics from a suspected trafficking ring. These operations often involve cooperation with federal agencies to curb drug distribution.

The Parkwood, Madera County community regularly participates in drug take-back events to safely dispose of unused medications, reflecting the town's proactive approach in dealing with drug abuse.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Parkwood, 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

Reach Out Find Out

California Department of Alcohol and Drug Programs

Crisis Text Line

No Drugs Downtown

Turning Point of Central California

Chief Probation Officers of California

National Council on Alcoholism and Drug Dependence

Youth Crisis Hotline

Parkwood Drug Testing

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

Parkwood DOT Drug Testing

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

Parkwood DNA Testing

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

Parkwood Industry Training

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

Parkwood Hair Drug Testing

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

Parkwood Alcohol Testing

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

Parkwood Drug Testing Services

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

Parkwood 5 Panel Drug Test

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

Parkwood 10 Panel Drug Test

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

Parkwood On Site Drug Testing

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

Parkwood DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Parkwood, 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