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Frequently Asked Questions

Where can I get a drug test near me? Use our location finder above to search by ZIP code or city. We have 20,000+ certified collection sites nationwide, including Quest Diagnostics, LabCorp, occupational health clinics, and urgent care centers. Most locations offer walk-in service or same-day appointments.

How much does a drug test cost? Standard 5-panel urine drug tests cost $45-$55. 10-panel tests cost $75-$90. Hair follicle tests cost $125-$150. DOT drug tests cost $45-$55. Prices vary by location and testing type. Employers typically pay for pre-employment and workplace testing.

How long does a drug test take? The collection process takes 15-30 minutes. Results are available in 24-72 hours for negative tests. Non-negative results take 48-72 hours due to MRO review and confirmatory testing. Same-day results are available with instant testing (preliminary only).

Can I walk in without an appointment? Most collection sites accept walk-ins, though wait times vary. Appointments are recommended to minimize wait time. For DOT and employer testing, you typically receive authorization with collection site information and appointment details.

What do I need to bring for a drug test? Bring valid photo ID (driver’s license, passport, or state ID) and your authorization form from your employer or testing agency. If paying yourself, bring payment method. List of prescription medications is optional but helpful.

How long do drugs stay in your system? Urine testing typically detects: marijuana 3-30 days (depends on frequency), cocaine 2-4 days, amphetamines 2-4 days, opiates 2-4 days, PCP 7-14 days. Hair testing detects use for 90 days. Oral fluid detects recent use within 24-48 hours.

What is a 5-panel drug test? A 5-panel drug test screens for five drug classes: marijuana (THC), cocaine, amphetamines, opiates, and PCP. This is the most common employment drug test and is required for all DOT testing. It uses urine specimen and takes 24-72 hours for results.

What is a 10-panel drug test? A 10-panel test includes everything in a 5-panel plus: benzodiazepines, barbiturates, methadone, propoxyphene, and Quaaludes. This expanded panel is common for pre-employment screening, probation testing, and positions with higher security requirements.

Do I get my drug test results? For employment testing, results go to your employer. The Medical Review Officer (MRO) may contact you if results are non-negative to discuss medications. You can request your results from the MRO. For personal testing, you receive results directly.

What happens if I fail a drug test? For employment: The MRO contacts you to discuss any prescription medications that might explain a positive result. If verified positive, your employer is notified and you may not be hired (pre-employment) or may face termination or mandatory SAP evaluation (current employee).

Can I test positive from secondhand marijuana smoke? No. Testing cutoff levels are set high enough that passive inhalation will not cause a positive result. You must actively use marijuana to test positive. Secondhand smoke will not register above the cutoff threshold in standard testing.

How accurate are drug tests? Laboratory drug tests using SAMHSA-certified labs are highly accurate (95-99%). All non-negative results undergo confirmatory testing using GC/MS or LC/MS technology. False positives are rare. MRO review eliminates most potential errors by reviewing medications.

Can prescription medications cause a positive test? Yes, some prescriptions can trigger positive results: opiates (pain medications like oxycodone, hydrocodone), amphetamines (ADHD medications like Adderall), benzodiazepines (anxiety medications like Xanax). The MRO will contact you to verify prescriptions. Bring documentation to collection site.

What is an observed collection? For observed collections, a same-gender collector directly observes you providing the specimen. This is used for DOT return-to-duty tests, follow-up tests, and when there’s reason to believe the donor might try to substitute or adulterate the specimen.

Can I refuse a drug test? For DOT testing, refusal is treated exactly like a positive test—removal from safety-sensitive duties and SAP evaluation required. For non-DOT employment testing, refusal typically means you won’t be hired (pre-employment) or may be terminated (current employee).

How soon will I get my results? Negative results: 24-48 hours typically. Non-negative results: 48-72 hours (MRO review required). Lab-confirmed positive: 3-5 business days. Instant tests: 5-10 minutes (preliminary only, must be lab-confirmed). Most employers receive electronic results within 48 hours.

Do drug testing locations test for alcohol? Yes. Breath alcohol testing (BAT) is available at most locations. Urine alcohol testing (ETG test, detects use up to 80 hours) is available. DOT alcohol testing requires breath test using DOT-approved evidential breath testing (EBT) device.

Are there drug testing locations open on weekends? Yes. Many Quest Diagnostics and LabCorp locations offer Saturday hours (typically 8 AM – 12 PM or 8 AM – 2 PM). Some occupational health clinics have Saturday availability. Sunday testing is limited but available at select locations. Call ahead to confirm weekend hours.

What if I can’t provide enough urine for the test? If you cannot provide 45mL of urine, you’ll be given water to drink and up to 3 hours to provide adequate specimen. If still unable after 3 hours, the test is reported as a “refusal to test” (DOT) or you may be sent to a physician to determine if there’s a medical reason.

Can I eat or drink before a drug test? Yes, you can eat and drink normally before a urine drug test. Avoid excessive water intake (over-hydration can dilute the sample). For blood tests, fasting may be required. For breath alcohol tests, avoid using mouthwash or breath mints 15 minutes before testing.

How do I prepare for a drug test? No special preparation needed. Don’t drink excessive water or use detox products. Bring valid ID and authorization form. Disclose prescription medications to the MRO if you test non-negative. Arrive with a moderately full bladder (you need to provide 45mL specimen).

Do all drug tests test for marijuana? Yes, marijuana (THC) is included in all standard drug test panels (5-panel, 10-panel, etc.) and is required in DOT testing. Some states with legal recreational marijuana still allow employers to test and maintain drug-free workplace policies. Federal positions always test for marijuana.