Gastric lavage: patients with severe vomiting don't need gastric lavage, and don't give up gastric lavage if they vomit less often. The sooner gastric lavage, the better. Generally, gastric lavage has the best effect within 4~6 hours after poisoning. But even if it is more than 6 hours, even 12~ 18 hours, gastric lavage can still be carried out according to the absorption of poisons. Warm boiled water and normal saline are generally used for gastric lavage. Potassium permanganate solution (1: 2000-5000) can also be used. Activated carbon can be injected as adsorbent after gastric lavage. Usage: put 30~50g into 500ml warm boiled water, mix it into suspension, and take it orally for several times or inject it into the stomach through a stomach tube, or absorb the poison with egg white.
Catharsis: 10% magnesium sulfate can be taken orally for catharsis, but it is not suitable for patients with central nervous system, respiratory and cardiac depression or renal insufficiency. The use of magnesium sulfate will lead to hypermagnesemia and magnesium poisoning. Sodium sulfate is usually more suitable for laxatives. Mannitol or behenyl alcohol can also be used as laxatives, especially after injection of activated carbon, which can increase the discharge effect of unabsorbed poisons. It has also been suggested that 30 ~ 60 ml castor oil be taken orally as a laxative.
Enema: For patients without diarrhea, high enema with salt water or soapy water can be used. 200-300ml each time, and take it for 2-3 times.
Infusion and diuresis: a large amount of infusion can be given in the early stage, so that a large amount of toxins can be discharged from the urine. Blood transfusion can use 10% glucose, physiological saline, etc. At the same time, intravenous diuretics are used. Intravenous injection generally uses 20~40mg of furosemide or 250ml of 20% mannitol, and can be injected repeatedly if necessary. However, attention should be paid to entering liquid balance and water-electrolyte balance, and potassium chloride should be supplemented to patients with low potassium.