BAC Flashcards
Alcohol is a
central nervous system depressant
Alcohol is absorbed in the
gastrointestinal tract by simple diffusion into the blood.
The small intestine is
most efficient region for absorption because of its large surface area.
10-20% of alcohol will be absorbed
in the stomach, 75-80% will be absorbed in the small intestine.
Depending on how long ago the person has eaten and what the dose of alcohol is
peak BAC levels can be reached as quickly as 30 minutes or as long as 4 hours from ingestion. Eating food delays peak BAC because the pyloric valve at the bottom of the stomach will close to allow digestion, keeping the alcohol from reaching the more efficient small intestine as rapidly.
Alcohol elimination
The liver metabolizes and eliminates 95% of ingested alcohol. Remaining alcohol is eliminated in breath, urine, sweat, feces, milk, and saliva…green apple smell on a drunk person’s breath
Heavier people are
less affected by a given amount of alcohol.
Well-muscled people are
less affected by alcohol than a person with lots of fat, since fat does not absorb as much alcohol as muscle.
Women tend to have higher body fat than
men
Fat absorbs less alcohol than
muscle