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Delaware County
Stop-DWI Program


BAC

Q & A on BAC

Q: What is “BAC”?
A: The amount of alcohol in a person’s body is measured by the weight of the alcohol in a certain volume of blood. This is called the blood alcohol concentration, or “BAC.”

Alcohol is absorbed directly through the walls of the stomach and the small intestine, goes into the bloodstream, and travels throughout the body and to the brain.

Alcohol is quickly absorbed and can be measured within 30 to 70 minutes after a person has had a drink.
 

Q: Does the type of alcohol I drink affect my BAC?
A: No! Alcohol is alcohol.

Each of the following contain the same amount of alcohol

·        12 oz can of beer at 5% alcohol

·        5 oz glass of wine at 12% alcohol

·        1.5 oz of 80 proof liquor at 40% alcohol

·        12 oz wine cooler at 5% alcohol
 

Q: What affects my BAC?
A:
A person’s BAC depends on a number of factors:

  • The number of drinks. The more you drink, the higher the BAC.

  • How fast you drink. When alcohol is consumed quickly, you will reach a higher BAC than when it is consumed over a longer period of time.

  • Your gender. Women generally have less water and more body fat per pound of body weight than men. Alcohol does not go into fat cells as easily as other cells, so more alcohol remains in the blood of women.

  • Your weight. The more you weigh, the more water is present in your body. This water dilutes the alcohol and lowers the BAC.

  • Food in your stomach. Absorption will be slowed if you’ve had something to eat.
     

Q: What about other medications or drugs?
A:
Medications or drugs will not affect your BAC level. However, if you drink alcohol while taking certain medications, you may feel – and be – more impaired, which can affect your ability to perform driving-related tasks.


Q: When am I impaired?
A: Because of the numerous factors that affect BAC, it is very difficult to assess your own BAC or impairment. Though small amounts of alcohol affect one’s brain and the ability to drive, people often swear they are “fine” after several drinks – but in fact, the failure to recognize alcohol impairment is often a symptom of impairment.

While the lower stages of alcohol impairment are undetectable to others, the drinker knows vaguely when the “buzz” begins. A person will likely be too impaired to drive before looking – or maybe even feeling – “drunk.”
 

Q: How will I know I’m impaired, and why should I care?
A:
Alcohol steadily decreases a person’s ability to drive a motor vehicle safely. The more you drink, the greater the effect. As with BAC, the signs of impairment differ with the individual.

In single-vehicle crashes, the relative risk of a driver with BAC between .08 and .10 is at least 11 times greater than for drivers with a BAC of zero, and 52 times greater for young males. Further, many studies have shown that even small amounts of alcohol can impair a person’s ability to drive.

Every State has passed a law making it illegal to drive with a BAC of .08 or higher. A driver also can be arrested with a BAC below .08 when a law enforcement officer has probable cause, based on the driver’s behavior.

The following chart contains some of the more common symptoms people exhibit at various BAC levels, and the probable effects on driving ability:

Q: What can I do to stay safe when I plan on drinking?
A:
If you plan on drinking, plan not to drive.
You should always:

  • Choose a non-drinking friend as a designated driver, or

  • Ask ahead of time if you can stay over at your host’s house, or

  • Take a taxi (your community may have a Safe Rides program for a free ride home), and

  • Always wear your safety belt – it’s your best defense against impaired drivers

   

Delaware County STOP-DWI Program  280 Phoebe Lane - Suite 5 ◦ Delhi, NY 13753