Day 3 Occupational diseases caused by the exposure of the chemical factors

Choose main pathogenetic groups can be defined nowadays among occupational diseases of the blood system

One of the simplest representatives of aromatic hydrocarbons is

Benzol is badly dissolved in

... – liquids, used as solvents to receive phthalic acids. Toxic action of .... is characterized with the affection of the central nervous system and irritation of mucous tunic of eyes and respiratory tracts. Chronic intoxications are accompanied by the decrease of the level of erythrocytes, poikilocytosis, anisocytosis and moderate leucopoenia with relative lymphocytosis. Sometimes, some thrombocytopenia can take place. In case of getting to skin, the development of dermatitis is possible.

... – are liquids. ... are used as solvent, intermediate products to receive some dyes, as well as insecto-fungicides. In the clinical pattern of the intoxication with ... are observed in the following cases: irritation of mucous tunic of eyes and respiratory tracts; in the blood the level of hemoglobin is decreased, the decrease of the number of erythrocytes and thrombocytes, as well as the appearance of methemoglobin.

Choose clinical symptoms of intoxication with carbon oxide, if content of carboxyhemoglobin in blood up to 10%

Choose clinical symptoms of intoxication with carbon oxide, if content of carboxyhemoglobin in blood 20 – 30 %

The boundary permitted concentration (BPC) of carbon oxide in the air of the industrial zone is 

.. is a colorless oleaginous liquid with mild aromatic smell; it darkens fast in the air; it dissolves well in ether, alcohol, and it dissolves badly in water. It can be used to produce dyes, artificial raisings, and color pencils, in pharmaceutical and rubber industries, as well as to produce explosive matters.

When poisoning with nitrobenzene and dinitrochlorbenzene, high

level of methemoglobin is for

In case of a sever form of acute poisoning with aromatic nitrocompounds and oilsperses, changes of blood go through the following stages: 

... is a soft, silvery-white or grayish metal. In the nature, it is mostly met in the form of sulphuric .... Poisoning with non-organic compounds of .... are more real in the mining and metallurgic industries, as well as in the production of ... paints and pigments, accumulators, during hardening of metal items in... baths, in production of crystal, when soldering (utilization of ... solders), when cutting metal items, which are painted (red ...), as well as in polygraph enterprises.

Lead interacts in the organism with active groups of proteins:

Hemolysis is conditioned by factors:

...is a rare metal; it evaporates at room temperature. It is widely used in the production of thermometers, manometers, barometers, daylight lamps, quartz lamp – source of UV-radiation, and polarographs. It is also used as a catalyst in the chemical industry and laboratory syntheses of organic matters, as a cathode at the electrochemical reception of caustic soda and chloride and at the production of paints. In mining business with the assistance of ..., gold is separated from non-metal admixtures.

The boundary permitted concentration of mercurous vapor in the air of production premises is

A man works in casting of nonferrous metals and alloys for 12

years. In the air of working area there was registered high content of heavy

metals, carbon monoxide, and nitrogen. During periodic health examination the

patient presents with asthenovegetative syndrome, sharp pains in the stomach,

constipations, pain in the hepatic area. In urine: aminolevulinic acid and

coproporphyrin are detected. In blood: reticulocytosis, low hemoglobin level.

Such intoxication is caused by:

During health assessment of car drivers and police officers on

point duty, the physicians detected carboxyhemoglobinin the blood of the

patients, weakened reflex responses, disturbed activity of a number of enzymes.

Revealed professional health disorders are most likely to be associated with the

effect of:

A 37-year-old man working as a typesetter in a print shop

complains of rapid fatigability, paroxysmal attacks of stomachache, weak

drooping hands. Examination of neurological status revealed hypotrophy of the

forearm muscles. Carporadial reflexes are sharply weakened. Sensitivity is not

disturbed. Gums present with dark blue border. What neurological pathology is

it?

During the periodic medical examination an assembly fitter

(works on soldering details) didn’t report any health problems. Closer examination

revealed signs of asthenic vegetative syndrome. Blood included red blood cells

with basophilic aggregations and a somewhat higher number of reticulocytes,

urine had a high concentration of delta-aminolevulinic acid. The complex of

symptoms indicates the initial stage of chronic intoxication with: