poisoning by nitrates
Occupational Diseases / / May 16, 2016
Sodium nitrite - colorless rhombic prisms.potassium nitrite - yellowish crystals.They are used in the synthesis of a number of organic substances in food (for processed meat and fish products) and textile industries.Possible poisoning during loading and unloading, in everyday life - in the mistaken ingestion of sodium nitrite instead of sodium chloride.There have been nitrites in the body through the respiratory system, gastrointestinal tract (random household intoxication).When you receive large doses of nitrite last excreted in the urine.
Nitrite - it poisons the central nervous system.Vasodilator effect is due to paresis of the vasomotor center, as well as direct action on blood vessels ( "nitrite effect").Strong metgemoglobinoobrazovateli.Is developing a mixed-blood circulatory hypoxia.
Headache, dizziness, pain in the epigastric region, nausea, tightness in the chest, a symptom of a "foreign hand", transient visual disturbances, flushing of the face, quickly replaced by sharp c
complaints of weakness, fatigue, decreased mental activity, headaches, sleep disorders, insomnia, pain in the heart, drawing pains in the muscles and joints of the limbs, numbness of fingers.
OBJECTIVE: angiodistonichesky syndrome with a primary lesion of the cerebral and peripheral vascular disease, blood - moderate hypochromic anemia, reticulocytosis, calf Heinz, methemoglobinemia.There may be yellowing of the skin on the palms, dry, cracks, bubbles rash, brittle nails.
First aid and treatment
Rest, heat, oxygen inhalation.Carbogen (1-2 cushions alternating with oxygen).Intravenous injection of 20 ml of 40 glucose 300 mg ascorbic acid.Analeptic agents - korazol, kordiamin;psychostimulant - caffeine;Adrenomimeticalkie - mezaton.Intravenous injection of methylene blue (25-50 mL of 1% solution).Exchange transfusion.If breathing stops - Lobelia, artificial respiration.
sealing process equipment.Protection of the respiratory system and skin during operation.Ban on smoking and eating in the workplace.