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Alcohol and the Body Flashcards

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Read the first 7 Alcohol and the Body flashcards as text

  1. In British Columbia, what is the legal BAC limit for a fully licensed driver before they are considered impaired for driving purposes?

    Answer: 0.08%

    In BC, the Criminal Code limit for impaired driving is 0.08% BAC, though police can issue roadside sanctions starting at 0.05%.

  2. At what BAC range does BC's 'warn range' begin, where police can impose immediate roadside sanctions?

    Answer: 0.05–0.08%

    BC's warn range is 0.05–0.08% BAC, where drivers face immediate roadside prohibitions even though they are below the Criminal Code limit.

  3. How does alcohol affect a person's reaction time?

    Answer: It slows reaction time even at low BAC levels

    Alcohol is a central nervous system depressant that begins slowing reaction time at even low BAC levels, well before visible signs of intoxication appear.

  4. Why do women typically reach a higher BAC than men after consuming the same amount of alcohol?

    Answer: Women generally have less body water and lower levels of alcohol-metabolizing enzymes

    Women typically have a higher proportion of body fat, less body water to dilute alcohol, and lower levels of the enzyme alcohol dehydrogenase, resulting in higher BAC.

  5. Which part of the brain is first affected by alcohol, contributing to lowered inhibitions?

    Answer: The frontal lobe, which governs judgment and decision-making

    Alcohol first impairs the frontal lobe, reducing a person's ability to judge risk and control impulses, which is why people feel more confident and less inhibited early in drinking.

  6. What is the effect of mixing alcohol with energy drinks on a person's perception of intoxication?

    Answer: Caffeine in energy drinks can mask feelings of tiredness, making a person feel less intoxicated than they are

    Caffeine can counteract the sedating effects of alcohol, causing a person to feel more alert, but their BAC and actual impairment remain unchanged — a dangerous combination.

  7. Which of the following will NOT speed up the sobering process?

    Answer: All of the above — none of these speed up sobering

    Only time allows the liver to metabolize alcohol; coffee, cold showers, and food after drinking do not lower BAC or speed up the sobering process.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. responsibleservicebc.gov.bc.ca — Eligibility, fees, exam format, renewal, time limit, score validity, test delivery, score release, retake fee, retake policy · verified Oct 2026