How to Tell If Someone Has Alcohol Poisoning

Alcohol poisoning shows itself through a specific set of warning signs, and the most critical one to watch for is dangerously slow breathing: fewer than eight breaths per minute, or gaps of 10 seconds or more between breaths. If someone is showing even one or two of the signs below after heavy drinking, they need emergency medical help. About 61,000 people die each year in the U.S. from causes linked to acute episodes of excessive drinking, including alcohol poisoning, and many of those deaths happen because bystanders assume the person is “just drunk” and will sleep it off.

The Key Warning Signs

Not every drunk person has alcohol poisoning. The difference is a matter of degree, and the signs tend to appear in a recognizable pattern as alcohol levels in the blood climb dangerously high. Here’s what to look for:

  • Slow or irregular breathing. Fewer than eight breaths per minute, or long pauses of 10 seconds or more between breaths. This is the single most dangerous sign because it means the brain’s ability to control basic life functions is shutting down.
  • Confusion or stupor. The person can’t carry on a conversation, doesn’t know where they are, or seems completely unaware of what’s happening around them. This goes well beyond typical drunken sloppiness.
  • Trouble staying conscious. They pass out and can’t be woken up, or they drift in and out of consciousness. If you can’t rouse someone by shaking them or calling their name loudly, that’s a medical emergency.
  • Vomiting, especially while unconscious. Vomiting is the body’s attempt to get rid of excess alcohol, but a person who vomits while passed out can choke because the reflexes that normally protect the airway are suppressed.
  • Seizures. Alcohol at toxic levels can cause seizures even in people who have no history of them.
  • Skin color changes. Skin that looks blue, gray, or unusually pale signals that the body isn’t getting enough oxygen. Check the lips and fingertips, where color changes show up earliest.
  • Low body temperature. Alcohol widens blood vessels near the skin’s surface, which causes heat to escape quickly. If the person feels cold or clammy to the touch, their core temperature may be dropping to dangerous levels.
  • Slow heart rate. You may not be able to measure this precisely, but if their pulse at the wrist feels faint or unusually slow, that’s another red flag.

You don’t need to see every sign on this list. Any combination of two or three, or even one severe sign like unresponsiveness or extremely slow breathing, is enough to call for help.

Why “Sleeping It Off” Can Be Fatal

The most common and most dangerous mistake people make is assuming the person just needs to sleep. After someone stops drinking, their blood alcohol level can actually continue to rise for 30 to 90 minutes as alcohol in the stomach and intestines keeps getting absorbed. That means a person who seems very drunk but still conscious at midnight could slip into a life-threatening state by 1 a.m. without drinking another sip.

The three things that kill people during alcohol poisoning are breathing failure, choking on vomit, and severe drops in body temperature. All three can happen silently while someone is unconscious. A blood alcohol concentration between 0.30% and 0.40% typically causes loss of consciousness and puts a person in the range of alcohol poisoning. Above 0.40%, the risk of coma and death from respiratory arrest is high. For context, the legal driving limit in every U.S. state is 0.08%, so these levels represent four to five times that threshold.

What to Do While Waiting for Help

Call 911 first. Then focus on keeping the person as safe as possible until paramedics arrive.

Turn them onto their side. This is sometimes called the recovery position, and it exists for one reason: if they vomit, gravity will help the vomit drain out of their mouth instead of blocking their airway or entering their lungs. Keep them in this position and stay with them. Don’t leave them alone, even for a few minutes.

If they’re outside or in a cold environment, cover them with a blanket or jacket. Their body is losing heat faster than normal, and hypothermia compounds the danger. Don’t try to give them coffee, food, or water. Their gag reflex may not be working properly, and anything you put in their mouth could end up in their lungs. Don’t put them in a cold shower, either. The shock can cause a loss of consciousness, and the cold will accelerate heat loss.

Try to keep them awake if you can, but don’t force it. Talk to them. If they can respond, keep the conversation going. If they stop breathing or you can’t detect a pulse, begin CPR if you know how.

What Happens at the Hospital

Emergency treatment for alcohol poisoning is largely about supporting the body while it processes the alcohol. The medical team will monitor breathing and heart rate closely, and they’ll provide fluids through an IV to prevent dehydration (alcohol is a powerful diuretic, and vomiting makes fluid loss worse). Vitamins and glucose are given to prevent complications like dangerously low blood sugar or brain damage from nutritional deficiency.

If breathing becomes too slow or stops, medical staff can provide breathing support. In rare cases where someone has consumed toxic types of alcohol (such as methanol from bootleg liquor or isopropyl alcohol from rubbing alcohol), a dialysis machine may be used to filter the toxins from the blood more quickly than the body can do on its own.

Most people who get to the hospital in time recover fully, though it can take hours for the body to clear all the alcohol. The experience is unpleasant but survivable with proper care.

Who Is Most at Risk

Alcohol poisoning can happen to anyone who drinks too much too fast, but certain factors raise the risk. Smaller body size means a given amount of alcohol produces a higher blood concentration. People who don’t drink regularly have less tolerance and can reach dangerous levels more quickly. Drinking on an empty stomach speeds absorption dramatically. And mixing alcohol with sedatives, opioids, or sleep medications multiplies the depressant effect on breathing and heart rate, sometimes fatally.

College-age drinkers get a lot of attention for alcohol poisoning, and for good reason: binge drinking is common in that age group, and drinking games or dares can push consumption to extreme levels in a short window. But CDC data shows that alcohol-related deaths most commonly involve adults 35 and older, and men account for roughly twice as many deaths as women. The risk doesn’t belong to one demographic. It belongs to anyone whose blood alcohol level climbs high enough, fast enough, to overwhelm the body’s ability to cope.