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Getting Started
Employment Drug Testing Guide
What to expect during pre-employment drug screening and your rights as an applicant.
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Drug Testing Information
& Resources
Learn about drug testing options, detection windows, and find testing centers near you. Educational resources for employment, legal, and personal testing needs.
Educational
Testing Information
Same-Day
Testing Available
Confidential
Testing Locations
Certified
Testing Labs
Test Panels
Common Drug Test Panels
Learn about standard drug testing panels used for employment, legal, and medical purposes.
Most Common
5-Panel Drug Test
The standard test for employment screening. Tests for the five most commonly abused substances.
- Marijuana (THC)
- Cocaine
- Opiates
- Amphetamines
- PCP
Standard employment test
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Comprehensive
10-Panel Drug Test
Expanded panel covering prescription drugs and common substances of abuse.
- All 5-Panel Drugs
- Benzodiazepines
- Barbiturates
- Methadone
- Propoxyphene
Expanded screening
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Most Complete
12-Panel Drug Test
Most comprehensive standard panel including extended opiates and synthetic drugs.
- All 10-Panel Drugs
- Extended Opioids
- MDMA/Ecstasy
- Oxycodone
- Quaaludes
Complete panel
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Test Methods
Drug Testing Methods
Different testing methods offer different detection windows and accuracy levels.
Urine Test
Most common method. Detects recent drug use (1-30 days depending on substance).
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Hair Follicle
Longest detection window (90 days). Harder to cheat. More expensive.
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Saliva/Mouth Swab
Detects very recent use (hours to 2-3 days). Non-invasive. Quick results.
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Blood Test
Most accurate for current impairment. Short detection window (hours to days).
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Detection Times
How Long Do Drugs Stay in Your System?
Detection windows vary by test type and substance. Learn what to expect.
| Substance | Urine | Blood | Saliva | Hair |
|---|---|---|---|---|
| Marijuana (THC) | 3-30 days | 1-7 days | 24-72 hours | 90 days |
| Cocaine | 2-4 days | 1-2 days | 1-2 days | 90 days |
| Opiates | 2-4 days | 1-2 days | 1-4 days | 90 days |
| Amphetamines | 1-4 days | 1-2 days | 1-3 days | 90 days |
| Benzodiazepines | 3-7 days | 1-3 days | 1-10 days | 90 days |
Find Testing
Drug Testing Centers by State
Find testing centers in your area. Same-day appointments often available.
Learn
Drug Testing Guides
Educational guides to help you understand drug testing and make informed decisions.
⏱️
Detection Times
Understanding Detection Windows
How long different substances stay in your system based on test type and usage patterns.
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Privacy
Is Drug Testing Confidential?
Learn about privacy protections, chain of custody, and who can access your results.
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Costs
Drug Testing Costs & Options
How much do drug tests cost? Options for employment, personal, and legal testing.
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Results
Understanding Your Test Results
What positive, negative, and inconclusive results mean. Next steps and retesting.
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Testing Types
Urine vs Hair vs Saliva Testing
Compare different testing methods to understand which is right for your situation.
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Why Us
Why Choose ClearDrugTests?
Educational Focus
We provide information to help you understand drug testing options and make informed decisions.
Lab Directory
Find certified testing centers near you with our comprehensive location database.
Fast Information
Quick access to test types, detection windows, and preparation guidelines.
Privacy Respected
Information about confidential testing options and your privacy rights.