Florida Drug and Alcohol Traffic Awareness TSLAE Practice Exam

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For how long can THC be detected in a human body using a drug test?

  1. Up to 24 hours after use

  2. Up to a week after use

  3. Up to a month after use

  4. Up to a year after use

The correct answer is: Up to a week after use

THC, the primary psychoactive compound in marijuana, can be detected in the body using a drug test for up to a week after use. Option A is incorrect because THC can stay in the body for longer than 24 hours. Option C is incorrect because even though THC can stay in the body for up to a month, it is most commonly detected within the first week after use. Option D is incorrect because THC typically does not stay in the body for up to a year. It may be detected in heavy, chronic users for longer periods of time, but this is not the typical case.

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