|Classification and external resources|
File:Michelangelo drunken Noah.jpg|
The Drunkenness of Noah by Michelangelo
Alcohol intoxication (also known as drunkenness or inebriation) is a physiological state that occurs when a person has a high level of ethanol (alcohol) in their blood. Common symptoms of alcohol intoxication include slurred speech, euphoria, impaired balance, loss of muscle coordination (ataxia), flushed face, reddened eyes, reduced inhibition, and erratic behavior. In severe cases, it can cause coma or death.
Alcohol poisoning (acute alcohol intoxication)
Alcohol poisoning is an acute and life-threatening condition that requires emergency medical attention. The signs and symptoms of alcohol poisoning include:
- dangerous anger
- seizures (fits)
- slow breathing (fewer than eight breaths a minute)
- pale, bluish skin
- cold and clammy skin
Emergency treatment for acute alcohol intoxication strives to stabilize the patient and maintain a patent airway and respiration, while waiting for the alcohol to metabolize: Also:
- Protect vital signs by monitoring ABCs, or Airway, Breathing, and Circulation, ie., if the person is thought to be at risk for severe respiratory depression, consider an Endotracheal tube to protect the airway and assist with breathing.
- Protect the airway from aspirating stomach contents that could cause aspiration pneumonia.
- Treat Hypoglycaemia (low blood sugar) with 50ml of 50% dextrose solution and saline flush, as ethanol induced hypoglycaemia is unresponsive to glucagon.
- Administer the vitamin thiamine, to prevent Wernicke-Korsakoff syndrome, which can cause a seizure (more usually a treatment for chronic alcoholism, but in the acute context usually co-administered to ensure maximal benefit).
- Check urea and electrolytes to guide fluid replacement.
- Apply Haemodialysis if the blood concentration is dangerously high (>400 mg%), and especially if there is metabolic acidosis.
- Provide oxygen therapy as needed via nasal cannula or non-rebreather mask.
Ethanol is metabolised to acetaldehyde by alcohol dehydrogenase (ADH), which is found in many tissues, including the gastric mucosa. Acetaldehyde is metabolised to acetate by acetaldehyde dehydrogenase (ALDH), which is predominantly found in liver mitochondria. Acetate is used by the muscle cells to produce Acetyl-CoA using the enzyme acetyl-CoA synthetase, and the Acetyl-CoA is then used in the Citric Acid Cycle. It takes roughly 90 minutes for a healthy liver to metabolize a single ounce, approximately one hour per standard unit.
Ethanol's acute effects are largely due to its nature as a CNS depressant, and are dependent on blood alcohol concentrations:
- 20–99 mg/dL - Impaired co-ordination and euphoria
- 100–199 mg/dL - Ataxia, poor judgement, labile mood
- 200–299 mg/dL - Marked ataxia, slurred speech, poor judgement, labile mood, nausea and vomiting
- 300–399 mg/dL - Stage 1 anaesthesia, memory lapse, labile mood
- 400+mg/dL - Respiratory failure, coma and death
As drinking increases, people become sleepy, or fall into a stupor. Ultimately, the respiratory system becomes depressed, and the person will stop breathing. The most important thing for friends who witness someone "passing out" from too much alcohol is to get them emergency medical treatment. Commonly, comatose patients aspirate their vomit (resulting in vomitus in the lungs, which may cause "drowning" and later pneumonia if survived). CNS depression and impaired motor co-ordination along with poor judgement increases the likelihood of accidental injury occurring. It is estimated that about a two-fifths of alcohol related deaths are due to accidents (32%) or intentional injury (13.7%).
In addition to respiratory failure and accidents caused by effects on the central nervous system, alcohol causes significant metabolic derangements. Hypoglycaemia occurs due to ethanol's inhibition of gluconeogenesis, especially in children, and may cause lactic acidosis, ketoacidosis and acute renal failure. Metabolic acidosis is compounded by respiratory failure. Patients may also present with hypothermia.
Alcohol is metabolized by a normal liver at that rate of about one ounce (one "highball", a normal beer, a regular sized glass of wine) every 90 minutes. An "abnormal" liver, one with hepatitis, cirrhosis, gall bladder disease, cancer, etc, will have a slower rate of metabolism.
In determining if someone is intoxicated it is necessary to observe their behavior while the subject is sober to establish a baseline, ruling out a preexisting condition such as hypoglycemia, usage of narcotics besides alcohol, mental health issues, etc. Several well known criteria can be used to establish a probable diagnosis. For a physician in the acute treatment setting, acute alcohol intoxication can mimic other acute neurological disorders, or is frequently combined with other recreational drugs that complicate diagnosis and treatment. Definitive diagnosis relies on a blood test for alcohol, usually performed as part of a toxicology screen. Many patients are uninhibited, especially when legal consequences are unlikely (e.g., no police are present), so they disclose information that simplifies the diagnosis.
Many informal intoxication tests exist. Because they are self-tests, they are inherently unreliable and are not recommended as deterrents to excessive intoxication.
For example, in New England there is a test which should be considered an urban legend or folklore. Most commonly referred to as the Pinch Test or the Swipe Test, it requires the drinker to rub the thumb and forefinger [of each hand] from the top of the nose downward and outward across the nose, or alternatively across the cheeks to the chin (as if stroking a beard). The test is supposedly based upon one's perception of the rubbing. If the sensation of contact persists (i.e., if you still feel your fingers on your face after removing them), then you are not intoxicated. If the sensation does not persist, it is suggested that you stop drinking.
There also exist several breathalyzer units which are sold by various producers. Because they are most likely not the same models as those used by police, it is advised that such devices be used only for personal reasons rather than for detecting one's ability to legally operate a motor vehicle.
A normal liver detoxifies the blood of alcohol over a period of time time that depends on the initial level and the patient's overall physical condition. An abnormal liver will take longer but still succeed, provided the alcohol doesn't cause liver failure.
A person who consumes a dangerous amount of alcohol persistently can develop memory blackouts and idiosyncratic intoxication or pathological drunkenness symptoms.
Long-term persistent consumption of excessive amounts of alcohol can cause liver damage and have other deleterious health effects.
The condition is found in those who ingest excessive amounts of alcohol. Common causes for excessive consumption include depression, alcoholism, inexperience with controlling the amount of alcohol consumed, lack of self-control, etc.
Society and culture
Laws on drunkenness vary between countries. In the United States, for example, it is a criminal offense for a person to be drunk while driving a motorized vehicle (driving under the influence), operating an aircraft, or (in some states) assembling or operating an amusement-park ride. This is also the case in the United Kingdom and many other countries.
The blood alcohol content (BAC) for legal operation of a vehicle is typically measured as a percent of unit volume of blood. This ranges from a low of 0.00% in Romania and the United Arab Emirates, to 0.05% in Australia and Germany, to 0.08% in the United Kingdom, the United States, and New Zealand.
Additionally, the U.S. Federal Aviation Administration prohibits crewmembers from performing their duties with a BAC greater than 0.04%, within 8 hours of consuming an alcoholic beverage or while under the influence of alcohol.
Minesites in Australia enforce a 0.0% BAC while on shift, thus regularly conduct alcohol tests across all personnel.
In the UK and US, police can arrest those deemed too intoxicated in a public place for public intoxication, "drunk and disorderly" or even "drunk and incapable". In the UK and Australia, being "drunk in a public place" is an offence in itself. There are often legal penalties for the sale of alcohol to intoxicated persons.
Many religious groups permit the consumption of alcohol but prohibit intoxication. Some prohibit alcohol consumption altogether. In the Qur'an, there is a prohibition on the consumption of grape-based alcoholic beverages, and intoxication is considered as an abomination in the Hadith. Islamic schools of law (Madh'hab) have interpreted this as a strict prohibition of the consumption of all types of alcohol and declared it to be haraam ("forbidden"), although other uses may be permitted.
Some Protestant Christian denominations prohibit the drinking of alcohol based upon Biblical passages which condemn it (for instance, Proverbs 23:21, Isaiah 28:1, Habakkuk 2:15), but others allow moderate use of alcohol. Wine is an essential part of the historic Christian rite of communion (see Christianity and alcohol). Proverbs 31:4–7 states a prophecy of King Lemuel,
- It is not for kings, O Lemuel, it is not for kings to drink wine; nor for princes strong drink:
- Lest they drink, and forget the law, and pervert the judgment of any of the afflicted.
- Give strong drink unto him that is ready to perish, and wine unto those that be of heavy hearts.
- Let him drink, and forget his poverty, and remember his misery no more.
In Buddhism, intoxication is discouraged in both monastics and lay followers. Lay followers observe the Five Moral Precepts of which the fifth precept forbids consumption of intoxicants substances (except for medical reasons). Monastic precepts are even stricter. In the Bodhisattva Vows of the Brahma Net Sutra, observed by some monastic communities and even some lay followers, distribution of intoxicants is likewise discouraged, in addition to consumption.
|40x40px||Wikisource has the text of the 1911 Encyclopædia Britannica article Drunkenness.|
- Alcohol and sex
- Alcohol flush reaction
- Get Your Sexy Back, a moderate drinking campaign
- Long-term effects of alcohol
- Short-term effects of alcohol
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