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Chapter 15 - Alcohol.docx

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Health Sciences
Health Sciences 1001A/B
Shauna Burke

Chapter 15: Alcohol Stats: - 79.3% of Canadians reported alcohol consumption in the past year - 44% reported drinking weekly - Males are more likely than females to report drinking in the past year - ~ 95% of university students consume alcohol - Through automobile crashes and other injuries, alcohol is the leading cause of death among people ages 15 to 24 - Ethyl alcohol is the most common psychoactive ingredient in all alcoholic beverages - When consumed, alcohol is absorbed into the bloodstream from the small intestine, stomach and the colon - It is then distributed throughout the body’s tissues, affecting nearly every body system - Main site of alcohol metabolism = liver – transforms alcohol into energy and other products - Body can metabolize roughly ¾ of a drink in 1 hour although, varies widely - If more alcohol is consumed than is metabolized, blood alcohol concentration (BAC) will steadily increase, as will intoxication From Reading: - In Canada, any beverage containing 1.1% or more alcohol is considered to be an alcoholic beverage - Alcohol contains seven calories per gram, and per drink is usually 100-200 calories. Beer provides 150 calories (light = 100 calories). Glass of wine = 100 calories. - 20% of alcohol is rapidly absorbed through the stomach, and 75% through the upper part of the small intestine (composition of the drink will affect the absorption rate) - Main site for metabolism of alcohol is the liver. About 2-10% of alcohol is unchanged and excreted via the lungs, kidneys and sweat glands - 50-60% of a person’s risk for alcoholism is determined by genetic factors Body Alcohol Concentration: - Measure of intoxication determined by the amount of alcohol consumed in a given amount of time. BAC depends on: - Sex - Weight - Body fat - Water content in body’s tissues - Concentration of alcohol in beverage - Rate of consumption - Volume of alcohol consumed Levels of BAC and their effects: - Using alcohol while taking a medication that can cause CNS depression increases the effects of both drugs, potentially leading to a coma, respiratory depression, and death. - Mixing 3 or more drinks per day with Aspirin, ibuprofen or aceraminophen increases risk of stomach bleeding or liver damage. Drinking and Driving: - MADD (mothers against drunk driving) - 16-25 year olds = 13.2% of Canada’s population = 33.4% of Canada’s alcohol related traffic deaths - Highest rate of impaired driving deaths occurs at 19 - Drinking = impaired judgement, reaction time and coordination (all critical reasons why individuals under the influence should not drive) - Since 1969 the legal BAC while driving is 0.08% (if you have your G license) - Many provinces have implemented legal consequences for individuals caught driving with the BAC between 0.05 and 0.08% (“warn-range”) Video: Understanding Canada’s Low-Risk Drinking Guidelines Standard Drink: 5.0 oz, 142mL wine = 12 oz, 341mL beer = 1.5 oz, 43mL hard liquor = standard Low risk drinking guidelines: ** Maximum amounts Healthy man = no more than 3 standard drinks a day and 15 in a week. Every week should have at least 2 days without drinking to avoid habituation. Healthy women = no more than 2 standard drink a day and no more than 10 standard drinks in a week. Every week should have at least 2 days without drinking to avoid habituation Zero % alcohol is the limit when: - Driving - Taking medication -
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