What is BAC Blood alcohol concentration BAC is the amount of alcohol in the blood BAC is measured with a breathalyser or by analysing a sample of blood A BAC of 005 means an adult has ID: 641913
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Slide1
BAC & Standard DrinksSlide2
What is BAC??
Blood alcohol concentration (BAC
) is the amount of alcohol in the
blood
.
BAC is measured with a breathalyser or by analysing a sample of blood.
A BAC of 0.05 means an adult has
0.05
g
of alcohol in every
100ml
of their blood. As the liver metabolises alcohol, the BAC level drops unless more alcohol is taken.
The more a person drinks, the more their BAC increases. However, a person’s BAC cannot be predicted easily. Counting the number of standard drinks you consume can only give a rough guide to your BAC. Two people who drink the same amount might register quite
different BACs
because of the following differences.Slide3
What
affects
BAC??
Size
-
A
smaller
person will have a higher BAC than a larger person because the alcohol is concentrated in a smaller body mass
Food
-
Someone with an
empty
stomach will reach a higher BAC faster than someone who has just eaten a meal. Food in the stomach slows down the rate at which alcohol passes into the bloodstreamSlide4
What
affects
BAC??
Fitness-
People with a
lower
percentage of body fat tend to have higher BACs because of alcohol is not absorbed by fatty tissue, and the alcohol is concentrated in a
smaller
body mass
Gender
-
After drinking the same amount of alcohol a
female
will almost always have a higher BAC than a
male
.
A
Female has
more fatty tissue and less water than a
male body
, and
females
tend to be smaller than
males
.
As a result, alcohol will have a greater effect on
women
than
men. Slide5
What affects BAC
Age-
One
drink raises the blood alcohol level of an older adult 20% more than it does for a young adult.
This is because metabolisms of older people are slower than that of younger peopleSlide6
A standard drink??
Is defined as a drink which contains
10
g
of alcohol
Calculating Blood Alcohol Content
the legal BAC for driving a car/motorbike is
0.05
‘L’
and
‘P’
plate drivers must have a zero level
readingSlide7
Regular Beer
285
ml
4.9
%
alchol
Slide8
Wine
100ml
15
% alcoholSlide9
Spirit
30ml
40
% alcoholSlide10
Fortified Wine
60
ml
20
% alcoholSlide11
Light Beer
425
ml
2.7
% alcoholSlide12
Guidelines for low risk drinking
All drinkers should have at least two alcohol free days every week
Women
should have no more than
two standard drinks
per day on a regular basis
Men
should have no more than
four standard drinks
per day on a regular basisSlide13
websites
http://www.creighton.edu/studentlife/officeoftheasstdeanofstudents/alcoholdrugeducation/alcoholbasics/whataffectsbaclevel
/
Wikipedia- BAC