How Long Do Drug Test Results Take?

How Long Do Drug Test Results Take?

It depends on the type of test as well as the test results. Negative tests are typically available sooner, while positive results take longer to confirm. Generally, test results will come back within one to seven days.

What Are Drug Tests?

Also called drug screenings, drug tests are tests administered for the purpose of detecting drugs in a person’s system. Typically, a specimen is taken from a person’s urine, saliva, blood, or hair and then sent to a lab for clinical testing. Drugs commonly tested for include:

• Alcohol
• Marijuana
• Cocaine
• Opioids
• Anabolic steroids
• Benzodiazepines
• Amphetamines
• PCP
• Barbiturates

Types of Drug Tests

When considering how long drug tests take, it’s important to know that there are several different types of drug tests available.

Urine Tests

Urine tests are the most commonly used drug tests. They typically test for five different drugs:

• Amphetamines
• Marijuana
• Cocaine
• PCP
• Opiates

The standard urine test is often referred to as a 5-panel drug test, but 10-panel urine tests may also be used for additional substances. Negative results may be available within one to two days, while positive results may take four to six days to confirm.

Blood Tests

Blood tests can detect drugs that are currently active in the bloodstream. A healthcare professional draws a small blood sample, usually from your arm. These tests have a very short detection window and are often used to determine if someone is under the influence at the time of testing.

Blood tests can detect the following substances:

• THC (marijuana)
• Oxycodone
• Cocaine
• Methadone
• Opioids
• Barbiturates
• Benzodiazepines
• Propoxyphene
• Phencyclidine
• Amphetamines

Hair Tests

Hair follicle tests can detect drug use for up to 90 days, making them ideal for identifying long-term use. A technician will take a small hair sample from the scalp. Results are available within two to three days for negatives and about a week for confirmed positives.

Substances detected include:

• Methamphetamine
• Ecstasy
• Marijuana
• Cocaine and metabolites
• Codeine
• Morphine
• Oxycodone
• PCP

Saliva Tests

Saliva tests are less common but are becoming more prevalent after approval from the U.S. Department of Health and Human Services for workplace testing. A swab is used to collect oral fluid, and results are typically available within 36 hours for negatives and up to 72 hours for positives.

What Are Drug Tests For?

Drug tests serve many purposes, from ensuring workplace safety to monitoring treatment progress. Employers often use them for pre-employment screening. Other reasons for drug testing include:

• Drug rehabilitation: To monitor progress during recovery programs.
• Forensics: As part of legal or criminal investigations.
• Athletics: To detect the use of steroids or performance-enhancing drugs.

What Factors Affect Drug Testing Times?

Several factors can affect how long drug test results take to process, such as:

• The type of drug being tested
• Whether results are positive or negative
• The specimen type (urine, blood, saliva, or hair)
• Lab procedures and confirmation requirements
• Lab location and workload

Signs of Substance Use Disorder

If you’re worried about failing a drug test, it could indicate a larger problem. Substance use disorders often begin with casual or experimental use that progresses over time. Common signs and symptoms include:

• Strong cravings for a substance
• Using drugs in risky situations
• Relationship problems caused by use
• Neglecting responsibilities
• Increased tolerance and withdrawal symptoms
• Failed attempts to quit
• Spending excessive time acquiring or using drugs

Even mild symptoms should be addressed early, as substance use disorders tend to worsen without treatment.

Professional Addiction Treatment

If you or someone you know struggles with drug use or fears a failed test, help is available. Professional addiction specialists can provide evidence-based care, including medical detox, inpatient and outpatient treatment, and ongoing recovery support. Addiction is a treatable condition—recovery begins with reaching out for help today.