How Long Do Drug Test Results Take?

Medically Reviewed:
Dr. Randy Gelow, MD, FASAM
Ray Hamilton, DNP, PMHNP-BC, FNP-C
Last Updated: March 31, 2025

Waiting for drug test results can feel like an eternity, especially when they play a major role in your job, health, or legal situation. Whether you’re undergoing a routine medical test, a pre-employment screening, or a legal drug test, understanding how long it will take to get your results can help ease the anxiety.

The timing of drug test results can vary based on the type of test, the substances being tested for, and other factors. Knowing what influences the speed of results can give you a clearer picture of what to expect and help you stay calm while waiting.

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How Long Do Urine Drug Test Results Take?

Urine drug tests are one of the most commonly used screening methods. They’re simple, affordable, and quick, which makes them ideal for many employers, healthcare providers, and legal authorities. Here’s what you need to know about how long it takes for the results to come back.

  • Typical Wait Time: In most cases, urine drug test results are available in 1 to 3 days. However, if the sample is sent to a lab for confirmation or further analysis, the process may take a little longer.
  • Factors that Impact Timing:
    • Lab Location: If the testing lab is nearby, the results may come in faster. A distant lab might add extra days to the process.
    • Substances Tested: Some drugs are easier to detect, like alcohol or marijuana, while others, such as prescription drugs, can take a little more time to analyze.
    • Positive Results: If the initial test shows a positive result, additional testing may be needed to confirm the findings, which can delay the results.

Once the test is complete, if the results are negative, you’ll typically get your outcome quickly. However, if it’s positive, the process may take longer to ensure the results are accurate.

How Long Does an Employment Drug Test Take?

Employment drug tests can feel like a big part of the hiring process is out of your hands. But how long should you expect to wait for those results?

  • Typical Wait Time: The results for an employment drug test usually take 1 to 5 business days. This time frame can vary based on the type of test conducted and the company’s internal process.
  • Why It Can Take Longer:
    • Confirmation Testing: If the initial test comes back with any unexpected results, additional confirmation or testing may be required. This can lengthen the overall wait time.
    • Lab Processing: Each lab has its own processing times, and some labs may take longer to analyze urine, blood, or hair samples than others.

If it’s been more than 5 business days without any updates, it’s perfectly fine to follow up with the company. Most employers will notify you about the results, but a polite inquiry can help keep you informed.

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How Long Do Blood Drug Test Results Take?

Blood drug tests are more in-depth than urine or hair tests, used primarily in emergency or legal situations when more precise results are required. While they offer a thorough analysis of substances still active in the bloodstream, they also take longer to process.

  • Typical Wait Time: Results from a blood drug test typically take 1 to 5 days. The time frame varies based on the substances being tested and the complexity of the analysis.
  • Why Blood Tests Take Longer:
    • Substances Tested: Some drugs, like alcohol, are easier to detect in the blood, while others, such as prescription medications, can take longer to analyze.
    • Urgency of Test: If the blood test is needed urgently, the lab may prioritize it, leading to quicker results.
    • Complex Analysis: Blood drug tests require more intricate analysis to detect metabolites and confirm that substances in your blood match the expected patterns. This process takes more time than simpler tests.

While blood tests take longer than urine tests, they provide a more detailed look at active drug use, which is why they require more time to process.

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How Long Do Hair Follicle Drug Test Results Take?

Hair follicle tests are less common but still an important tool for detecting long-term drug use. These tests are particularly useful for identifying drug use over the past 90 days. Since they provide a longer window of detection, the results take longer to process.

  • Typical Wait Time: Hair follicle drug test results generally take 5 to 10 business days. The lab needs to carefully analyze hair samples to detect the presence of drugs used over the last several months.
  • Why Hair Follicle Tests Take Longer:
    • Detection Period: Hair tests have the ability to detect drug use over a 90-day period, which requires more time to process compared to other types of tests.
    • Testing Process: Analyzing hair samples is more complex and requires more detailed procedures, contributing to the longer wait time.

Although hair follicle testing takes longer, it provides a broader view of drug use, making it useful in situations where long-term drug use needs to be detected.

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Which Drugs Can a Drug Test Result Detect?

You might be wondering which drugs can be detected in a drug test. It depends on the type of test being used, but here’s a general guide to what can be detected in different tests.

Drugs Found in Urine Tests

Urine tests are commonly used to detect:

  • Marijuana
  • Cocaine
  • Methamphetamine
  • Heroin and other opiates
  • Benzodiazepines (like Xanax or Valium)

Drugs Found in Blood Tests

Drug blood test results can detect substances that are still active in your system, including:

  • Alcohol
  • Cocaine
  • Marijuana
  • Prescription drugs (like opioids)

Drugs Found in Hair Follicle Tests

Hair tests can detect drugs that have been used over the past three months, including:

  • Marijuana
  • Cocaine
  • Heroin
  • Methamphetamine

Knowing which drugs can be detected in each test helps you prepare for what to expect from drug screening results.

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What Can Delay Drug Test Results?

Several factors can delay the receipt of drug test results. A few common reasons include:

  • Lab Backlogs: When a lab is overwhelmed with tests, the processing time may be longer than expected.
  • Second Testing: If the initial results are positive or inconclusive, further testing may be required, which can extend the processing time.
  • Weekends and Holidays: Many labs do not operate on weekends or holidays, so results may be delayed until the next business day.

If you’re waiting for results and they’re taking longer than expected, don’t hesitate to follow up with the testing facility for an update.

How to Stay Calm While Waiting for Drug Test Results

Waiting for drug test results doesn’t have to be stressful. By understanding the timelines and factors that affect the results, you can stay calm while you wait. Whether it’s for a job, a medical test, or a legal situation, knowing what to expect can help reduce anxiety.

If you’re worried or need support understanding the process, don’t hesitate to reach out to a professional or a facility like Hart Rehab, which is here to guide you through every step of the journey.

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