Drowning can kill you in a few minutes. How long will it take to drown completely?

Sometimes, a person's life is very fragile. Maybe in a few minutes, life will stop beating and a person will be gone. Recently, in the rainy season all over the country, floods flooded, so countless people suffered in the floods. So how can you die after drowning for a few minutes? How long will it take to drown completely? Let's take a look.

1, drowning for 4-6 minutes.

Drowning in fresh water, inhaling a lot of fresh water, which dilutes blood and leads to hemolysis. High blood potassium and low blood sodium levels often cause ventricular fibrillation. In animal experiments, it can cause cardiac arrest within 2 to 3 minutes.

Seawater drowning produces hypertonic blood due to inhalation of a large amount of seawater. In animal experiments, it may lead to cardiac arrest within 8 to 10 minutes.

When the water temperature is too low, it is generally not directly drowned by cold water. The real cause is usually the fatal reaction of the body to hypothermia. About 20% people in frozen seawater may die of "cold shock" within 2 minutes. Uncontrollable shortness of breath and panic lead to severe asthma and backward pumping of blood, so that more water is inhaled, which greatly increases blood pressure and the resilience of the heart and may lead to cardiac arrest.

In addition, 50% people usually die of fatal physical cold disability, which usually leads to death within 15 minutes. The crisis protection mechanism of the human body will first protect the central organs of the body, making the limbs lose the function of swimming or grasping, and people will drown because of fatigue and coma (for example, Titanic sank in the sea at -2℃, and most people died within 15-30 minutes).

2. How to save yourself after drowning

1. Keep calm, don't kick your hands and feet, reduce the entanglement of aquatic plants and save your strength.

2. Hold your breath immediately after falling into the water, kick off your shoes and relax your limbs. When you feel that you are beginning to float, try to lean your head back so that your nose can breathe out of the water; When breathing, try to inhale through your mouth and exhale through your nose to avoid choking. Shallow exhalation and deep inhalation.

Swimmers who can't swim should not try to stick their heads out of the water, which will make you more nervous and passive, thus making the whole self-help fall short.

4. When the rescuer appears, the drowning person must not grasp the rescuer's hands, legs, waist and other parts in panic, and must obey the rescuer's command, otherwise it may bring trouble to the rescuer's life.

3, others drowning first aid method

1, quickly remove the patient from the water, remove the dirt in the oropharynx and nasal cavity, and keep the respiratory tract unobstructed.

2. Quickly pour out the accumulated water in the respiratory tract and stomach, and put the patient on his stomach, with his waist raised and his head drooping. The performer pressed his back with his hand. Grab the legs of the drowning person, put the abdomen on the shoulders of the first aider, walk quickly, and pour out the accumulated water.

3. If the patient's breathing or heartbeat has stopped, cardiopulmonary resuscitation should be carried out at the emergency scene.

4. After breathing and heartbeat recovery, pay attention to keep warm, massage limbs and promote blood circulation.

5, after a short time to rescue the heartbeat, breathing does not recover, on the one hand, continue to rescue, on the one hand, to the hospital for help. The lovely doctor said that the death caused by delayed drowning treatment is very common in summer, and the survival of drowning people is closely related to the initial first aid; It is necessary to master the common sense of drowning first aid. If the rescue is timely and proper, drowning people can often come back to life. The earlier the rescue, the greater the hope of survival.