The causes of vc and shrimp poisoning are as follows:
Researchers at the University of Chicago in the United States found through experiments that soft-shell foods such as shrimp contain a large number of high-concentration pentapotassium arsenic compounds. This substance has no toxic effect on human body after ingestion! However, after taking "vitamin C", it was originally non-toxic due to chemical action-pentapotassium arsenic (arsenic anhydride, also known as crude arsenic. Its chemical formula is As205) and it is transformed into toxic potassium arsenic (arsenic anhydride, also known as arsenic trioxide, its chemical formula is As203), commonly known as arsenic! Arsenic has protoplasmic toxicity, which can paralyze capillaries, inhibit the activity of captopril, cause necrosis of hepatic lobule center, congestion of heart, liver, kidney and intestine, necrosis of epithelial cells and telangiectasia. So the victims who are poisoned by it are often bleeding from seven orifices. So just to be careful.
If the amount of vitamin C exceeds 1000mg at a time, it will be a bit troublesome. I think the most important thing is what vitamin C you eat, natural or synthetic. Natural problems are not serious. I've never heard that eating oranges kills people. Everything should be measured. If it is well controlled, it will not be a big problem.
Second, if you are unfortunately poisoned! Just look at the following:
1. Patients with oral poisoning immediately induce vomiting and gastric lavage. Before gastric lavage, the newly prepared arsenic precipitant ferric hydroxide solution (12% ferrous sulfate, 20% magnesium oxide suspension, mixed evenly) was taken orally, and a spoonful was taken every 5 ~ 15 minutes until vomiting stopped or egg white water (four egg whites plus 200m 1) was taken. After taking it, gastric lavage is performed, and then magnesium sulfate or sodium sulfate is given for catharsis. You can also use medicinal charcoal suspension for gastric lavage.
2. Contact or inhalation poisoning: Leave the poisoned environment immediately and choose one of the following antidotes. ① Sodium Disodium Disodium Salicylate (5 mg/kg), intramuscular injection or intravenous injection, every 4 ~ 6 hours1time, the next day1/8 hours, the third day 1 ~ 2 times /d, 5 ~ 7d days as a course of treatment. ② The first dose of disodium dimercaptosuccinate (2g) was dissolved in 20ml physiological saline and injected intravenously, then 1g/6h, after 4-5 times 1g/d for 3-5d. ③ dimercaprol 2.5 ~ 4 mg/kg, 1 once every 4 hours, then twice a day after 48 hours, with a course of 7 ~ 14d. The curative effect of this product is slightly worse than the above two drugs, and the side effects are slightly more. If necessary, sodium dimercaptopropanoate or disodium dimercaptosuccinate can be used to remove arsenic after 2 ~ 3 weeks.
3. Symptomatic treatment such as severe abdominal pain can be intramuscular injection of atropine 0.5mg plus pethidine 50 ~ 100 mg.
4. Supplement a lot of vitamins B, C and K, maintain the balance of water and electrolyte, and give energy mixing appropriately.
5. Acute hydrogen arsenide poisoning should ① take oxygen immediately. ② Intravenous injection of hydrocortisone 400 ~ 600 mg or methylprednisolone 10 ~ 20 mg inhibited hemolytic reaction. ③ Actively protect the kidney and inject 60 ~ 100ml of 50% glucose solution intravenously. 20% mannitol (250ml) was injected intravenously to accelerate micturition by 20 ~ 100 mg, and ultrashort wave diathermy appeared in renal area. Peritoneal dialysis or hemodialysis should be considered for anuria. (4) If the hemoglobin is as low as 5g, blood transfusion is needed, and severe hydrogen arsenide poisoning can be treated by exchange transfusion.
Eating more than 100g in total can lead to human poisoning, so please be careful!
Third, I'll show you another news:
The earliest report came from Bao Jing in July 2003 1, with the title: vitamin C+ seafood = arsenic? "The article says:
"Friends who love seafood should be careful. Not long ago, it was reported that a woman in Taiwan Province Province died suddenly. The cause of death is probably that she ate a lot of shrimp and vitamin C for dinner. Experts pointed out that a lot of seafood+a lot of vitamin C= arsenic.
Nowadays, many people have developed the habit of taking vitamin C tablets every day, thinking that vitamin C can improve human immunity and is good for the body. Not to mention eating seafood, many people can't control themselves in front of delicious food. But the combination of the two will have such terrible consequences. Is that really the case?
Dr. Yu Kang, a clinical nutritionist at Peking Union Medical College Hospital, said that many seafood, such as shrimp, crab, clam and oyster, contain the chemical element arsenic. Generally, the content is very small, but the increasingly serious environmental pollution may make the arsenic content in these animals reach a high level. Shrimp contains pentavalent arsenic, which is generally harmless to human body. However, when a high dose of vitamin C (more than 500mg in one intake) reacts with pentavalent arsenic, it will be transformed into toxic trivalent arsenic (also known as "arsenic"), which will lead to human poisoning when it reaches a certain dose.
★★★★★★★★ According to the doctor, the situation of the above-mentioned women is rare in life. Arsenic poisoning can only be caused when a large number of shrimps (especially shrimps that may be seriously polluted) are eaten and 500 mg of vitamin C tablets are taken at one time.