Practice Test Geeks(DRE) Drug Recognition Expert Certification Practice Test
← All DRE Flashcard Decks

DRE Toxicology & Drug Testing Flashcards

6 cards from real DRE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 DRE Toxicology & Drug Testing flashcards as text

  1. Which biological specimen is most commonly requested in a DRE investigation to confirm drug presence?

    Answer: Blood

    Blood is the preferred specimen in DRE cases because it most accurately reflects the drug concentration present at the time of impairment.

  2. What is the term for the process by which the body breaks down a drug into metabolites?

    Answer: Metabolism

    Metabolism refers to the biochemical transformation of a drug into metabolites, primarily occurring in the liver.

  3. A DRE suspect's blood draw should ideally be collected within how many hours of driving to capture peak drug levels?

    Answer: 4 hours

    Blood should be collected within approximately 4 hours of driving to best capture relevant drug concentrations for most substances.

  4. Which drug category is most likely to produce a mydriasis (pupil dilation) finding on a toxicology-correlated DRE exam?

    Answer: CNS stimulants

    CNS stimulants such as cocaine and methamphetamine cause sympathetic activation, resulting in dilated (mydriatic) pupils.

  5. In DRE toxicology, what does a 'confirmatory test' such as GC-MS verify?

    Answer: The identity and quantity of a specific drug

    GC-MS (gas chromatography–mass spectrometry) is used to confirm the specific identity and concentration of a drug detected in a specimen.

  6. Which phenomenon describes a drug requiring increasingly higher doses to achieve the same effect over time?

    Answer: Tolerance

    Tolerance occurs when the body adapts to a drug so that higher doses are needed to produce the original effect, which can complicate impairment assessment.