Marijuana Drug Tests

The Marijuana Drug Test detection time-urinalysis

Light smoker or acute dosage	1-3 days
Moderate use (4x / week)	3-5 days
Heavy smoker (daily)	10 days
Heavy, chronic use (5+ joints/day)	10-21+ days
Oral ingestion	1-5 days

Passive inhalation of marijuana.

In general, routine passive exposure to marijuana smoke will not result in a positive result for carboxy-THC.
Only under unrealistic conditions, a person may test positive for carboxy-THC, but concentrations are generally below the routine cut off levels.

THC - Substances or Conditions which can cause false positives

• Dronabinol (Marinol)
• Ibuprofen; (Advil, Nuprin, Motrin, Excedrin IB etc)
• Ketoprofen (Orudis KT)
• Kidney infection (Kidney disease, diabetes) Liver Disease
• Naproxen (Aleve)
• Promethazine (Phenergan, Promethegan)
• Riboflavin (B2, Hempseed Oil)

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