What symptom does solder poison have?
summary
Tin smelting workers work in the environment of tin dust concentration of 9.362mg/m3, and tin pneumoconiosis occurs. Clinically, cough, expectoration, chest tightness and other symptoms are rare, and most patients have no lung function changes. The chest X-ray film typically showed clusters of round or quasi round small spot like shadows widely distributed in the two lung fields, which looked like petaled Osmanthus fragrans flowers, but did not fuse with each other. Its diameter could reach 3-5mm, with high density and sharp edge. The hilum of lung is usually not enlarged. What are the symptoms of solder poisoning?
What symptom does solder poison have?
1. Early nervous system can have dizziness, headache, fatigue, numbness of hands and feet, mental depression, sleep disorders, gastrocnemius pain, hyperalgesia, etc. Further progress of the disease, may appear fuzzy consciousness, drowsiness, apathy, memory loss, limb tremor, dysarthria, tinnitus, hearing loss, emotional disorders, aggressive behavior, auditory hallucination, visual hallucination, disorientation, and even incontinence, convulsions and coma. Fatigue often appears first, and the patient feels very weak; Headache is also a prominent symptom, for paroxysmal pain or tear like, very severe. Physical examination showed that abdominal wall reflex, testicular reflex, tendon reflex weakened or disappeared, limb muscle tension decreased, pathological reflex may be positive. Electroencephalogram examination may appear diffuse abnormalities, mainly in the brain α The wave weakened or disappeared, and a large number of waves appeared θ Spread δ The affected part is scattered in sharp wave, spike wave or spike slow complex wave.
2. Hypokalemia. Hypokalemia can occur in most poisoning patients. In severe cases, serum potassium can be reduced to less than 2.0 mmol / L. hypokalemia can last for more than one week. In the case of potassium supplement, hypokalemia may still occur. When the blood potassium level returns to normal, once the amount of potassium supplement decreases or stops, the blood potassium of some patients may decrease again, but the degree of hypokalemia in a few cases is not completely parallel to the disease.
3. Chest tightness, palpitation and arrhythmia (mainly sinus arrhythmia and sinus bradycardia) may occur in cardiovascular system; ECG showed U wave, non-specific ST-T segment changes and QT interval prolongation; A few patients had elevated serum myocardial enzyme levels.
matters needing attention
Tin smelting, crushing and other processes should be mechanized and closed, and ventilation and dust discharge should be strengthened. Besides strengthening personal protection, workers exposed to tin dust should be monitored regularly. For organotin poisoning, we should try to avoid contact with organotin preparations and pay attention to ventilation in the relevant working environment.
