Can a poisonous snake bite and die?

People bitten by poisonous snakes will not die immediately, and the venom of poisonous snakes can only play a corresponding role in the blood. It also depends on the amount of venom injected into the body. The neurotoxin in the venom can affect breathing and requires immediate professional treatment. Although antivenom is effective, it must be injected as soon as possible after being bitten.

First aid of poisonous snake bite

The first aid of poisonous snake bite refers to the emergency measures taken in a short time after bite. After being bitten by a poisonous snake, the venom injected into the body spreads very quickly. Experiments show that snake venom can kill animals in 3 minutes. Therefore, the purpose of emergency treatment is to take measures as soon as possible to stop the spread of snake venom in human body, eliminate snake venom and eliminate snake venom. After being bitten by a snake, you must first be calm. If the mental stress is too great, it will sometimes lead to mental breakdown and fainting. Shouting and running will speed up blood circulation and make snake venom spread faster. Therefore, after being bitten by poisonous snakes, self-help or mutual rescue should be carried out according to the following steps.

1, ligation

After being bitten by a poisonous snake, immediately use a soft rope or a soft belt to locally ligate the bitten part, so as to slow down the lymphatic and blood reflux and temporarily prevent the body from absorbing snake venom. It is best to use rubber tourniquet and hemostatic bandage for ligation. We can't find a ready-made tourniquet in the wild for the time being. We can use all kinds of things for ligation, such as belts, shoelaces, bark, kudzu vine or grass vine. The location of ligation depends on the degree of bite and local swelling. If the finger or toe is bitten, it can be ligated at the root of the finger (toe); After biting the back of the hand or below the wrist joint, ligate the forearm; Bites below the foot and ankle can be ligated above the calf or knee joint.

Ligation must be done as soon as possible. If the bite lasts for more than half an hour, the ligation site should be more than one joint of the bitten site. If you are bitten for more than 2 hours. 3 hours, ligation is invalid.

Step 2 clean the wound

After being bitten by a poisonous snake, the venom will overflow on the wound skin. When washing, the venom adhered around the wound and on the skin can be washed away to reduce the absorption of venom. It is best to wash with physiological saline, hydrogen peroxide or 1% potassium permanganate solution and soapy water. If in the wild, rinse with Leng Cha, cold boiled water or stream water. It is best to wash with cold boiled water and salt. If conditions do not allow, you can use your own fresh urine to wash. After cleaning the wound quickly, do detoxification immediately.

3, disinfection, pick open the wound

After washing the wound with poison, it is best to disinfect the wound with 75% alcohol, and then pick the wound with a clean chisel, triangular needle or other clean and sharp tools, not too deep. The principle is to cut the skin between two tooth marks, up: under three needles: the chisel pierces several holes around the wound, and the blade is as big and deep as a grain of rice. The surgical method of piercing the skin is shown in the figure.

This can prevent the wound from clogging and the venom can flow out. When conditions permit, 1% procaine can be used for local anesthesia. According to aseptic operation, cut the wound into the shape of "*" or vertical with a knife along the tooth marks of the wound. The length of incision is about 1 cm, and the depth can reach subcutaneous tissue. If there is a local blister, several small "cross" incisions can be made around it to facilitate the discharge of venom. In addition to stab wounds, such as upper limb bites, superficial skin can be punctured at Eight Evil Points, lower limb bites, or Eight Wind Points and local swelling, and detoxified with a scalpel.

When cutting the wound, we must pay attention to avoid blood vessels and nerves, and at the same time, we must not be too deep, so as to avoid cutting off blood vessels and nerves, causing wound bleeding, or spreading snake venom rapidly, or causing nerve function failure of the affected limb.

Immediately after stabbing or cutting, soak the injured limb in 2% cold salt water or Leng Cha for detoxification. Or in the spring of a mountain stream. If possible, rinse the wound repeatedly with 1% potassium permanganate solution and hydrogen peroxide. , and continuously squeeze 15-20 minutes from the upper part of the injured limb to the wound by hand to wash the venom injected into the wound to the maximum extent. Bitten by vipers, vipers, etc. Generally, it is not necessary to do stabbing detoxification, which can prevent bleeding, but other methods should be taken to destroy snake venom.

4. Sucking is a simple and effective method and an emergency measure for accidental snake injury in the wild.

People suck through their mouths and detoxify wounds directly. This method can effectively suck out snake venom, but it must be sucked and spit out. And rinse your mouth with clear water every time to prevent poisoning. People who use sucking method must have no ulceration or dental caries in their mouths. suffer

People with pharyngitis and chronic tonsillitis cannot use this method either. This is because if the venom is inhaled into the mouth, it will be absorbed through the focus, which is in danger of poisoning.

If the venom in the wound cannot flow out smoothly, and the wound is in a large part, you can use breast pump suction, cupping and other methods to detoxify.

If the wound is in a small part, you can also use a penicillin or streptomycin glass bottle with a zinc cover and a rubber stopper to smooth the bottom and cover the wound, and then use a syringe to pump out the air in the bottle to make it become negative pressure for drug treatment. You can draw 7 repeatedly. Eight times. So as to suck out most of the snake venom. Take some snake medicine while doing first aid treatment.