<unk>  is described as a mental and behavioural disorder by the International Classification of Diseases. (ICD-10). Definitive diagnosis relies on a blood test for<unk> , usually performed as part of a toxicology screen. Law enforcement officers in the United States and other countries often use breathalyzer units and field sobriety tests as more convenient and rapid alternatives to blood tests. There are also various models of breathalyzer units that are available for consumer use. Because these may have varying reliability and may produce different results than the tests used for law-enforcement purposes, the results from such devices should be conservatively interpreted. Many informal<unk>  tests exist, which, in general, are unreliable and not recommended as deterrents to excessive<unk>  or as indicators of the safety of activities such as motor vehicle driving, heavy equipment operation, machine tool use, etc. For determining whether someone is intoxicated by<unk>  by some means other than a blood-alcohol test, it is necessary to rule out other conditions such as hypoglycemia, stroke, usage of other intoxicants, mental health issues, and so on. It is best if their behavior has been observed while the subject is sober to establish a baseline. Several well-known criteria can be used to establish a probable diagnosis. For a physician in the acute-treatment setting, acute<unk>  can mimic other acute neurological disorders, or is frequently combined with other recreational drugs that complicate diagnosis and treatment.
Alcohol intoxication
Hepatic encephalopathy
Drug withdrawal
Traumatic brain injury
Nicotine withdrawal
Wernicke encephalopathy
Alcohol withdrawal syndrome
Meningitis