What Does an Alcohol Level of 500 Mean? A Critical Health Warning
                                
                                
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                                    6 min read                                
                            
                                According to the National Institute on Alcohol Abuse and Alcoholism, a blood alcohol concentration (BAC) over 0.40% is potentially fatal, meaning that an alcohol level of 500 mg/dL, or 0.50% BAC, indicates a severe and critical medical emergency. This level of alcohol in the bloodstream can lead to coma, respiratory arrest, and death.