Symptoms of snake venom poisoning

summary

Snake venom poisoning is that when the snake bites the human body, its venom is injected into the human body from the groove teeth or tube teeth, and distributed to the whole body through blood circulation, causing various local and systemic poisoning symptoms.

Symptoms of snake venom poisoning

The severity of the symptoms is related to the amount of venom, the location and depth of the bite, and the body's resistance to the venom. In particular, the mental state of the injured is closely related. The snakebite is mostly in the hands and feet. Two deep and large teeth marks can be seen at the injury, 1-2cm apart. Peripheral congestion edema, a little longer time to turn black. After being bitten by a poisonous snake, they usually have self-conscious symptoms, such as dizziness, dizziness, chest tightness, palpitation, shortness of breath, fear of cold, fever, and general soreness.

Severe shock symptoms, wound pain, swelling, numbness. The surrounding tissue was congested and edematous, and rapidly expanded to the proximal end. It generally reached the peak at 12 hours after injury, and extended to the chest and abdomen, often with right lymphangitis and regional lymphadenopathy.

Because each kind of poisonous snake contains different toxin, the symptoms after being bitten are also different. Cell, blood and cardiotoxin are characterized by swelling and pain in the bite area. They rapidly develop to the proximal end of the heart. Local blisters, blood blisters, tissue necrosis, continuous bleeding of the wound, systemic bleeding or hemolysis, anemia, jaundice, hemoglobinuria, oliguria, anuria, low heart sound, arrhythmia, decreased blood pressure, shortness of breath, cyanosis, shock and death may occur.

matters needing attention

Immediately after the bite, a soft rope was used to ligate the wound 2-3cm near the heart end to prevent venous and lymphatic reflux, but it was relaxed for 1 minute every 15-20 minutes to prevent ischemic necrosis of the distal limb. The wound should be rinsed immediately with cold boiled water and concentrated saline, preferably with 5% calcium disodium edetate or 1:5000 potassium permanganate until the outflow blood turns bright red. As soon as possible, use a knife to make a cross shaped incision (do not damage muscle contact, nerves or blood vessels), expand the wound and drain the poison. Use a suction device, syringe needle or cupping jar to suck out the poison. In case of emergency, use mouth (without ulcer) to suck, spit while sucking, and gargle with water to prevent the sucker from poisoning.