Determination of a state of alcoholic intoxication

Determination of a state of alcoholic intoxication and its degree from living persons is made by the doctors-psychiatrists and neurologists, and in case of their absence - by doctors of other specialities, including in some cases and forensic experts.
The conclusion about the presence of alcoholic intoxication is based on clinical examination, quality samples (A. M. Rapoport for the presence of alcohol in the exhaled air, M. A. Mokhov and I. P. Shinkarenko and others) and the biochemical analysis of blood and urine on the quantitative content of alcohol. When assessing the content of ethyl alcohol in the blood and urine, the doctor should take into account the dynamics of its content in these environments, from the moment of reception of alcohol and before its launch. The greatest difficulties arise when establishing a mild degree of alcoholic intoxication.
When assessing the condition of intoxication should adhere to the data given in table. 11.

Table 11. Approximate scheme to identify degree of alcohol intoxication
The concentration of ethanol in the blood, PPT The degree of intoxication
Less than 0.3
From 0.3 to 0.5
From 0.5 to 1.5
From 1.5 to 2.5
From 2,5 to 3,0
From 3,0 to 5,0
From 5.0 to 6.0
Absence of influence of alcohol
Insignificant influence of alcohol
Slight intoxication
Intoxication medium
Strong intoxication
Heavy alcohol poisoning, death can occur
Fatal poisoning

When assessing alcohol intoxication may be necessary to determine the amount of alcohol taken in the composition of alcoholic beverages. Calculated by the following formula: a = P (+βt), where a is the number taken alcohol per 100 % alcohol, g; S - the alcohol concentration in the blood to the period t; P - weight, kg; and b is the fall of the concentration of alcohol in the blood for 1 hour in minimum.
In the early phase of elimination p 0.10 to 0.13%, and the muscular load - 0,15-0,20 per thousand, and in traumatic brain injury is reduced to 0.06 to 0.08 per thousand.
Forensic chemical analysis of blood and urine tests to establish in them the concentration of alcohol is carried out in judicial-chemical branches of the Bureau of forensic medical examination by method of gas chromatography. By drawing blood and urine on judicial-chemical study should be guided by the following rules. The blood sample is placed in a small tube with a capacity of about 5 ml, filling her to the brim. In case of intake of urine surveyed propose first to release all of urine in a clean glass or cylinder, a part of this urine is placed in a clean washed flask from under penicillin. After 30-45 min simultaneously with the second blood sample surveyed offer again to urinate, the urine is placed in the second vessel.
At the end of the examination, preferably take the third portion of urine. Dishes that take blood and urine must be absolutely clean, to have a well-fitting rubber or cork stoppers preliminary boiled in water with addition of alkali, and then rinsed in distilled water. Samples of blood and urine should be delivered to study in forensic chemistry Department Bureau no later than one day after the capture.
When evaluating the results of the forensic chemical research, we must remember that in the urine of patients with diabetes at its storage in room conditions (at a temperature of about 20 C) due process of alcoholic fermentation, as a rule, the formation of ethyl alcohol, reaching to the 10-th day of storage 9's and more. The same applies to the deaths of diabetes patients - in the case of long term storage of corpses in the indoor environment in the urine contained in the bladder, and in most cases also due to the alcoholic fermentation is sustainable education ethyl alcohol, reaching of 7% or more.


When assessing the condition of intoxication should adhere to the data given in table. 11.