Blood loss How long does it take for the human body to recover and how long can it last to live with

How long does it take to be able to ** after blood loss?

This question is too general.

First of all, it depends on the strength of the person's hematopoietic ability. Secondly, it depends on what is causing the blood loss.

Without considering the difference in hematopoietic capacity:

If it is caused by "blood donation", there is basically no need to consider the problem of "**", because there is no premise of affecting health.

If it is caused by trauma, it is also necessary to divide the severity of the "trauma", because it involves the overall repair problem.

For example, if there is a lot of bleeding caused by a small wound, the small wound will heal quickly, and all that remains is hematopoiesis. In severe trauma, the body must first repair the tissue damage, and the hematopoietic work will be temporarily postponed.

If it is caused by the disease, it is necessary to look at the cause and effect of the disease (elimination of the ** that caused blood loss), and there is no expected value.

When the blood loss of the human body reaches 20% of the total blood volume, the body is still not enough to maintain the normal level of blood volume and blood pressure after compensation, which will affect the person's life activities. The amount of blood loss exceeds 30% in a short period of time, and if the blood is not transfused in time, it can be life-threatening.

In general, an adult with blood loss of 500 ml can have no obvious symptoms. When the amount of blood loss is more than 800 ml, there will be symptoms such as paleness, pale lips, cold sweat, cold hands and feet, weakness, shortness of breath, and fast and weak pulse. When the amount of blood loss reaches more than 1500 ml, it can cause insufficient blood supply to the brain, and the injured person will have symptoms such as blurred vision, thirst, dizziness, confusion or restlessness, and even coma.

I hope it can help you, and I hope you are satisfied.

The final consequence of short-term massive blood loss is generally hypovolemic shock (unless the cardiovascular and cerebral blood supply cannot be maintained before shock), and finally death due to irreversible hemodynamic changes in small blood vessels and multi-organ failure. At first, the punctured artery should be spurted with blood that seems to feel very hot, similar to peeing when you are cold This is hearsay, I don't know if it's true or not. Then it will enter the first stage (allow me to move the encyclopedia) in the early stage of shock, in the case of primary symptoms and signs, there are mild signs of excitement, such as consciousness is still clear, but irritability and anxiety, nervousness, paleness, slight cyanosis of the lip nail bed, increased heart rate, increased respiratory rate, cold sweat, rapid pulse, blood pressure can drop suddenly, or slightly, or even normal or slightly high, pulse compression is small, and urine output is reduced.

At this point, the person should be pale and purple-colored lips due to the extensive constriction of small blood vessels (the body maintains central blood pressure). But the consciousness is still very clear, you will feel flustered, and your breathing will get faster and faster to relieve the lack of oxygen. Then it will enter a more dangerous stage: the patient is irritable, unconscious, shallow breathing, decreased temperature of the limbs, low and dull heart sounds, thin and weak pulse, progressive decrease in blood pressure, which can be less than 50mmHg and undetectable, pulse pressure less than 20mmHg, **clammy and cold hair, little or no urine.

At this time, it will be like those 10,000-year-old episodes in various ** movies. "Ah I feel so cold, ah I feel like I'm being flooded with cold water, ah my eyes are so blurry, ah I can't do it anymore, and it becomes difficult to think. "From the outside, it looks pale and cold, but one thing is not quite the same as film and television works, that is, if the blood loss is not so bad, it will make the patient very restless, not motionless.

The manifestation of small blood vessels is caused by the contraction time for too long: "Ah I can't do it, ah I can't hold on, ah I will starve to death without nutrition, ah I am surrounded by poisonous gas, ah I can't do it, I will open the gate and bleed, ah why does my blood pressure come down, I still can't receive blood, ah I'm going to faint ......."...... passedWent to ......Finish....... Clotting factors say:

Ay? Look at those brothers over there, it doesn't seem to be good. "Seems so, why don't we go and plug him up, so that he doesn't break down and bleed out for a while.

Some people who have lost too much blood should not have passed this stage because of the lack of oxygen in the heart and brain = = <>