Can you fight a failed drug test?

Author: Michael Gerhold II  |  Last update: Wednesday, January 21, 2026

The DOT gives an employee who tests positive for drug use to dispute the result within 72 hours of learning of the positive result. When a test result is disputed, a second, more in-depth, test is performed. The employee doesn't provide a specimen for the second test though.

How to dispute a failed drug test?

How to Dispute a False Positive Drug Test
  1. Speak to Your Employer. Raising your concerns about your test results is the first step in disputing a false positive. ...
  2. Speak to a Professional. If you're taking medication, speak to your doctor or pharmacist for their professional advice. ...
  3. Ask For a Retest. ...
  4. Consider Legal Action.

What are your options if you fail a drug test?

Steps to Take After Failing a Drug Test: Actions include requesting a retest, understanding your rights, seeking rehabilitation, and preparing for future tests.

Can you still get hired after failing a drug test?

Typically, a drug screen failure will result in a lifetime ban -- unless you are a professional athlete. If it's a pre-employment drug screen failure, your application file will be flagged, preventing you from being considered for future positions.

What is the best defense against a positive drug test?

To challenge a positive drug test result, you can request a retest or a confirmatory test, such as GC-MS. Provide documentation of any prescription medications, over-the-counter drugs, or supplements you are taking, and consider consulting with a lawyer if necessary.

Should a Failed Drug Test Land You in Jail?

Will 2 liters of water dilute urine?

Typically ingesting 1-2 liters or more within an hour of testing is sufficient to dilute most specimens for a 2–6 hour period. Diuretics such as caffeine and cranberry juice and some medications, including water pills may cause diluted urine samples.

Can you argue a positive drug test?

If you can show that a positive test was caused by an error with the test itself, the result may be thrown out. The same may be true if you can show that it was caused by prescription medication or some other substance that you have the legal right to use.

How long does a failed drug test stay on your record?

However, the results of a positive drug test for certain positions, such as those regulated by the Department of Transportation, may be available for future employers to see. DOT drug test results remain in the Drug and Alcohol Clearinghouse generally for five years.

What is the most common false positive drug test?

The most common false positive drug test is for amphetamines, which can be triggered by over-the-counter decongestants, the nasal inhaler Benzedrex, the antidepressant Wellbutrin, and the weight-loss supplement Acutrim (WebMD).

Will I fail a drug test if my urine is clear?

Diluting the sample by adding water can also raise red flags by changing the color and/or temperature of your urine; a clear sample will probably be rejected, as will a lukewarm one. Ignore the rumor going around that drinking bleach will purify your urine.

How to avoid a positive result in a drug test?

How Do People Try to Beat Drug Tests?
  1. Detoxify their urine. By drinking large amounts of water or cranberry juice, people think they can flush the drugs from the body and cleanse their urine. ...
  2. Use additive products to cleanse their urine. ...
  3. Substitute other urine for their own.

Will I pass a drug test if I haven't smoked in 3 weeks?

Article at a Glance:

Even though the effects of THC only last a few hours, traces of it can stay in the body for weeks or months. You could fail a drug test between 30 to 90 days after using marijuana depending on if urine, blood, or hair follicles are tested.

What happens if I don't pass a drug test for work?

Common potential consequences of failing a drug test at work are termination, suspension, recommended substance use disorder treatment, or other disciplinary actions. Although positive test results often accurately indicate a history of drug use, a false positive may also occur.

What to say when you fail a drug test?

You should disclose all questionable foods and medications that you have taken recently that may impact drug test results. Some medications may remain in your system for several days or even weeks after your last use, so you should include medications that you may no longer be taking.

What cancels a drug test?

The specimen bottle seal is broken or shows signs of tampering. There is an insufficient amount of urine in the primary specimen bottle (30 mL in bottle A) and the specimens cannot be re-designated. A CCF arrives to the laboratory without a specimen. A specimen arrives to the laboratory without a CCF.

What foods should you avoid before a urine drug test?

Patient must abstain from avocados, bananas, tomatoes, plums, eggplant, hickory nuts, walnuts, pineapple, coffee and mollusks. and during collection: aspirin, corticotropins, MAO inhibitors, phenacetin, catecholamines, reserpine and nicotine. Restrict caffeine, nicotine and alcohol 24 hours prior to collection.

Can I sue for a false positive drug test?

Current case law indicates that in the context of drug testing, an employer or independent testing firm may be liable for negligence when tests are improperly administered, when test results are inaccurately maintained, and when an employee who has tested positive for drugs injures a third person.

Does a failed drug test show up on a background check?

In most cases, failed drug tests do not appear on background checks. Privacy laws, such as HIPAA, protect medical information from being shared without an individual's consent, and employers, especially in private companies, typically do not disclose such results.

What will mess up a urine test?

Some known chemicals include, salt, soap, bleach, peroxide and eye drops. Most drug testing machines have the ability to detect specimens with chemicals, tagging them as invalid. However, not all adulterants are detected.

Can you still get hired if you fail a drug test?

In most cases, failing a pre-employment drug test will mean that you will not be eligible for the position. Before a company can conduct pre-employment drug tests, they must first clearly state that an offer of a position to the candidate is contingent on passing a pre-employment drug test.

Is it worse to fail a drug test or refuse?

Your refusal to submit to a drug or alcohol test is generally equivalent to testing positive to a drug or alcohol test.

Can I retake a failed drug test?

Yes, you can usually retake a drug test. However, there are often specific procedures and timelines involved. If the initial test was for employment, the employer may allow a retest.

What are the odds of getting a false positive drug test?

Drug screening results can negatively affect many circumstances; therefore, accuracy is of the utmost importance. Some data suggests 5% to 10% of all drug tests may result in false positives and 10% to 15% may yield false negatives.

Are instant urine drug tests accurate?

Instant urine drug tests are accurate when used correctly, but several factors can influence their reliability. Most instant drug screens have a high accuracy rate, often detecting commonly abused substances like cannabis, cocaine, amphetamines, and opiates.

Will I get fired if I fail a drug test?

Generally, and with some exceptions, when an employee fails a drug test, Section 1025 of California's Labor Code allows employers to fire or refuse to hire them.

Previous article
How long is it safe to cut for?
Next article
Can I have a shower after a lemon bottle?