How Do You Know If You Passed Your Drug Test?

In today’s world, drug tests are a common practice that can make or break your career, education, or athletic aspirations. You may have taken a drug test for various reasons, such as getting hired for a new job, participating in sports, or joining the military. 

But once the test is done, the anxiety sets in. You may wonder, “How do you know if you passed your drug test?” 

This article explores what you need to understand about drug testing, the process, false positive or negative tests, misconceptions about drug tests, and how to know if you passed your drug test. 

So, buckle up and get ready to put your mind at ease with the knowledge you need to understand drug testing.

Understanding drug testing

Drug testing is a standard practice in many corporate workplaces to ensure employee safety and productivity. This may involve drug testing, including marijuana, cocaine, and opioids. 

Drug testing may be conducted before an employee is hired, as a random test during employment, or following an incident or suspicion of drug use. Employees must understand the company’s drug testing policy and the consequences of failing a drug test. 

Depending on the severity of the violation, failing a drug test may result in suspension, termination, or legal action. Therefore, employees need to be mindful of any substance use that may be detected by drug testing.

While drug testing may feel invasive to some employees, it’s essential for maintaining a safe and productive workplace environment. As such, employees must take necessary precautions, such as avoiding drug use altogether or limiting use to periods outside of work hours.

The drug testing process

The drug testing process - lmshero

Your urine, blood, hair, or saliva samples are analyzed during a drug test. Each method has advantages and disadvantages, and employers may choose the best method that suits their needs. 

These samples are then sent to a laboratory, where professionals conduct a thorough analysis to identify any drug metabolites present. It’s important to note that the chain of custody and privacy concerns are taken into account to maintain the integrity and confidentiality of the process. 

The turnaround time for receiving test results may vary depending on the type of test and the laboratory’s workload. Drug testing can also be used for medical purposes to monitor the levels of prescription medications in a patient’s system or to identify potential drug interactions.

It is important to note that drug testing can have limitations and may not always accurately identify drug use. False positives or negatives can occur for various reasons, including certain medications or dietary supplements, lab errors, and sample tampering.

Drug testing is a valuable tool in detecting and preventing drug use. Still, it should be used with other monitoring and support methods for individuals struggling with substance abuse.

False positive and false negative results

While drug tests strive to provide accurate results, false positives, and negatives can occur. A false positive refers to a test result indicating the presence of a drug when the person hasn’t used it. 

Conversely, a false negative occurs when a test fails to detect the presence of a drug that has been used. Several factors can contribute to these inaccuracies, including cross-reactivity with certain medications, faulty testing equipment, or human error during sample collection or analysis. 

How do you know if you passed your drug test?

After going through a drug test, being anxious and eager to determine the results is normal. Here are some signs that can tell you if you passed or failed the test:

  • Consider the timing of the test. Most drugs are eliminated from the body within a specific period, depending on metabolism and frequency of use. 
  • You will likely receive a call from your employer or the testing company to inform you of your results.
  • You can also ask for a copy of your drug test results, indicating if you tested positive or negative for any substances.
  • You likely passed the test if you have yet to receive any communication after a week or two.
  • Another indicator of a passed drug test is the lack of unusual symptoms or side effects. For instance, if you are not experiencing any dizziness, nausea, or headache, it could mean that your results were negative.
  • In some cases, employers may require a re-test, so following up with your employer or the testing company is important to ensure you have cleared the screening.

Observations made during the test, such as the absence of suspicious behavior, can also indicate a passing outcome.

Interpreting test result indicators

Drug test results are typically categorized as negative, positive, or inconclusive. A negative result indicates no presence of the tested substances, while a positive result indicates their presence above a predetermined cutoff level. 

Inconclusive results may occur due to various reasons, such as technical issues or insufficient sample volume. Understanding the cutoff levels for each drug and the potential need for confirmatory testing can help you interpret your results accurately.

Misconceptions about drug testing

When it comes to drug testing, many misconceptions can lead to confusion and anxiety. Here are a few of the most common misconceptions:

  1. All drug tests are the same: There are many, each with strengths and weaknesses. Some tests detect drugs, others cannot, while others are more reliable or accurate. It’s important to understand what type of test you are taking and how it works.
  2. You can cheat on a drug test: While there are many myths and rumors about ways to cheat on drug tests, the truth is that most methods are ineffective. Diluting urine samples or using “detox” products may not work and can lead to more serious consequences. It’s better, to be honest and upfront about drug use and work to get clean.
  3. Drug tests are always accurate: While drug tests are generally reliable, there is always the possibility of false positives or negatives. Certain medications or foods can also cause false results, so disclosing relevant information to the testing company is important.

By understanding these misconceptions and educating ourselves about drug testing, we can reduce stress and uncertainty and focus on maintaining our health and wellness.


How long does it take to get drug test results?

The turnaround time for drug test results varies depending on the type of test and the laboratory’s workload. It can range from a few days to a couple of weeks.

Can over-the-counter medications affect drug test results?

Some over-the-counter medications may cross-react with certain drug tests and potentially cause false positives. It’s important to inform the testing facility about your medications.

What if you accidentally tampered with the sample during the test?

Tampering with the sample during the test can have serious consequences. It’s best to follow the instructions provided by the testing facility and notify them immediately if any accidental tampering occurs.

Can secondhand marijuana smoke cause a positive result?

Yes, secondhand marijuana smoke can result in a positive test. However, the cutoff levels used in drug tests are typically set high enough to minimize the chances of passive exposure leading to a positive result.

Are drug tests always accurate?

Drug tests have a high level of accuracy when conducted properly. However, false positives and negatives can occur due to various factors, which have been discussed above.

Can drinking excessive water help pass a drug test?

Drinking excessive water before a drug test is not a foolproof method to pass. Diluting urine by consuming excessive water may raise suspicions and could result in an inconclusive test or require a retest.

Final thoughts

In conclusion, drug testing can be daunting and keep you on edge throughout the waiting period. However, now you better understand drug testing, the process, false positive or negative tests, misconceptions about drug tests, and interpreting test results.

Also, you know various ways to tell if you passed your drug test. It’s important to remember that the best way to pass a drug test is to avoid drug use altogether. 

But if you find yourself in a situation where you need to take a drug test, the key is to be informed, calm, and aware of your options. With this knowledge, you can confidently approach drug testing and take control of your future.

You can also find out if all jobs conduct a drug test.

Thanks for reading.