SFST Alcohol Influence and Physiological Effects

Question 1

What does BAC stand for in the context of DUI enforcement?

Accepted Answer

Blood Alcohol Concentration

Answer

BAC stands for Blood Alcohol Concentration, which measures the amount of alcohol in a person's bloodstream expressed as a percentage.

Question 2

In most U.S. states, the per se BAC limit for non-commercial adult drivers is:

Accepted Answer

0.08%

Answer

The federally encouraged and most widely adopted per se BAC limit for adult non-commercial drivers in the U.S. is 0.08%.

Question 3

Which organ is primarily responsible for metabolizing alcohol in the human body?

Accepted Answer

Liver

Answer

The liver is the primary organ responsible for metabolizing approximately 90–95% of consumed alcohol through enzymatic processes.

Question 4

Approximately how long does it take the average adult liver to metabolize one standard drink?

Accepted Answer

One hour

Answer

On average, the human liver metabolizes alcohol at a rate of approximately one standard drink per hour, though this varies by individual.

Question 5

Based on its effects on the central nervous system, alcohol is classified as which type of drug?

Accepted Answer

Depressant

Answer

Alcohol is a central nervous system depressant that slows brain function and neural activity, impairing judgment, coordination, and reaction time.

(SFST) Standardized Field Sobriety Testing Certified Practice Test