Highest blood alcohol level before death

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Summary

• Breath, urine, or blood tests can measure one’s blood alcohol content (BAC)
• 49 states have a legal limit of 0.08% BAC
• Utah has a lower limit of 0.05% BAC

Relevance of Blood Alcohol Concentration

A person’s BAC refers to the concentration of alcohol currently in their blood.

It is typically written as a percentage representative of the ratio of alcohol to blood. Thus, a 0.08% BAC means a blood sample contains 0.08% alcohol and 99.92% blood.

BAC represents a crucial measurement, as higher concentrations of alcohol result in greater impairment of an individual’s physical and cognitive faculties. BAC levels within the following ranges produce the subsequent effects:

• 0.02 to 0.04%: A lightheaded, relaxed feeling with mild impairment
• 0.05 to 0.07%: Lowered inhibitions and affected cognition and memory
• 0.08 to 0.10%: Drowsiness and physical weakness
• 0.11 to 0.15%: Severe cognitive and physical impairment

With a BAC of roughly 0.25%, a person may black out.

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