Types of Drug Tests

Drug testing comes in several forms, each with different detection windows, accuracy levels, and use cases:

Urine Drug Testing

The most common type of drug test. Urine tests are affordable, widely available, and detect recent drug use (typically 1-30 days depending on the substance).

  • Best for: Employment screening, random testing, medical monitoring
  • Detection window: 1-30 days
  • Cost: $30-$100

Hair Follicle Testing

Hair testing can detect drug use over a 90-day period. It's harder to cheat but more expensive and won't detect very recent use.

  • Best for: Pre-employment, safety-sensitive positions
  • Detection window: 90 days
  • Cost: $100-$150

Saliva (Mouth Swab) Testing

Saliva tests detect very recent drug use and are non-invasive. They're often used for roadside testing or post-accident situations.

  • Best for: Post-accident testing, reasonable suspicion, roadside
  • Detection window: Hours to 2-3 days
  • Cost: $20-$60

Blood Testing

Blood tests are the most accurate for detecting current impairment but have the shortest detection window.

  • Best for: Medical settings, legal cases, accident investigation
  • Detection window: Hours to 1-2 days
  • Cost: $100-$300

Common Drug Test Panels

Drug tests are typically organized into "panels" that test for multiple substances:

5-Panel Drug Test

The standard federal/DOT test that checks for the five most commonly abused drugs:

  • Marijuana (THC)
  • Cocaine
  • Opiates (heroin, codeine, morphine)
  • Amphetamines
  • PCP

10-Panel Drug Test

Includes the 5-panel plus additional prescription drugs commonly abused:

  • All 5-panel substances
  • Benzodiazepines (Xanax, Valium)
  • Barbiturates
  • Methadone
  • Propoxyphene

12-Panel and Expanded

More comprehensive panels that may include:

  • Extended opiates (oxycodone, hydrocodone)
  • MDMA/Ecstasy
  • Synthetic cannabinoids
  • Fentanyl

Reasons for Drug Testing

  • Pre-employment: Required by many employers before hiring
  • Random testing: Ongoing screening for safety-sensitive positions
  • Post-accident: After workplace accidents to determine if drugs were a factor
  • Reasonable suspicion: When there's evidence of possible drug use
  • Return-to-duty: Required after a positive test before returning to work
  • Legal/Court-ordered: Part of probation, custody cases, or legal proceedings
  • Medical: Monitoring prescription drug use or emergency treatment