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Alcohol concentration in blood depends upon various factors, sometimes a person may have consumed low amount of alcohol but the device would show a very high reading. There are various factors that decide the amount of alcohol in blood and if you are aware of those factors then it would be highly helpful to measure the alcohol concentration in blood accurately. You will find here the different factor that affects blood alcohol concentration.
Age: The blood alcohol concentration level is higher in an older person than a younger person for the same amount of alcohol consumed. It is due to the difference in metabolic rate between a younger and older person.
Gender: Blood alcohol content in blood also differs based on gender basis. Normally men will have a higher amount of water content in body while woman will have a lower amount when compared with the male counterparts. As alcohol is water soluble it gets dissolved fast in men than in women. Moreover men will have higher amount of enzymes in stomach than woman. High quantity of enzymes will quickly break down the alcohol and the BAC will be lower in men for the same amount of alcohol consumed.
Fat/Obese body: The speed of breaking down of alcohol is lower in obese or fatty person. Alcohol remains in the blood stream until it broken down by liver. However if the person has more muscle that has higher amount of water content absorbs alcohol at much faster rate.
Alcohol consumption rate: If a person consumes alcohol at a faster rate, then the blood alcohol content will also rise faster. To avoid getting more alcohol content in the blood stream instantly the rate of consumption must be lower. Do not measure the alcohol level in blood using breathalyzer instantly after consuming alcohol.
Food: There is greater difference in the rate of alcohol entering the blood stream when the stomach is empty and when it is full with food. For instance, drinking in empty stomach will raise the blood alcohol content quickly and value in the breathalyzer would be higher than you expect.
Carbonated drinks: Drinking alcohol along with carbonated drinks increases the rate in which it is absorbed into the blood stream. Sodas generally have the property to increase the metabolic rate in which the alcohol is passed through the stomach. Don't check the BAC using a portable breathalyzer after taking alcohol along with soda as it will show a higher value.
Medications: There are certain medications that can increase the amount of alcohol in blood stream. Aspirin, cough medicines, anti-depressants and various other medicines can amplify the alcohol content in blood instantly.
Altitude: If you are at a higher place than sea level the amount of alcohol gets absorbed into the blood stream faster however it is not scientifically proven.