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Lesson 3. Alcohol, BAC, impairment, and drug interaction

Students learn how alcohol affects the body, behavior, judgment, BAC, driving ability, and risk when combined with prescription, nonprescription, or illegal drugs.

Each module includes written content, audio, and an interactive review. When enrollment opens, student progress is recorded in sequence and does not allow omitted content.
Content audio

Listen to the lesson

This review view reads the lesson text aloud in the browser so the written content is also available as audio.

Alcohol effects

Alcohol can lower inhibition, slow reaction time, impair coordination, reduce judgment, and change mood or behavior.

A person may appear functional while still being impaired enough to make unsafe decisions or drive unlawfully.

BAC factors

Blood alcohol concentration changes with the amount consumed, time, body size, food, medication, tolerance, and individual differences.

Servers should never rely on a guest's confidence or statement of tolerance as proof that service is safe.

Drug interaction risk

Alcohol can interact with prescription drugs, nonprescription drugs, cannabis, sedatives, stimulants, opioids, and illegal drugs in unpredictable ways.

The safest service decision is based on observed behavior and risk, not on guessing exactly what substance is involved.

Key takeaway

Before moving forward, choose one concrete action that lowers risk and respects the course completion controls.

Interactive review

Lesson knowledge check

Each module includes an interactive check before moving forward. This view lets reviewers test the pattern without a student account.

1. What is one main idea from lesson 3?

2. What should the student avoid?

3. What makes the certificate reliable?

4. How should the student apply this lesson?

Previous module: Lesson 2. Sale and service laws for alcohol beveragesNext module: Lesson 4. Recognizing intoxication and preventing over-service
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