How many milliliters of blood is typically donated in one session?
The general blood donation quantity should be between 200ml and 400ml, and excessive blood donation is not recommended as it may be detrimental to health. Blood donation can be considered a great social public welfare cause that can help more people. Although blood donation is a good thing, regardless of how healthy one is, the standard for blood donation should not be excessive, and one should choose a reputable hospital for blood donation.
1.
According to China's blood donation law, the standard blood donation quantity is 200 to 400ml, with a maximum of 400ml. This is because the blood volume in the body accounts for about 7 to 8% of body weight, and different weights result in different blood volumes.
2.
For an adult male weighing 60kg, there is approximately over 4000ml of blood in the body. Donating 400ml of blood is equivalent to donating about 1/10 of the total blood volume, which generally does not cause significant complications.
3.
If the blood donation quantity is excessive, it can lead to insufficient blood volume in the donor, causing symptoms such as dizziness, excessive sweating, palpitations, chest tightness, etc. Therefore, the scientific basis for donating a maximum of 400ml of blood at a time.
4.
After blood donation, donors should promptly drink water, consume high-protein foods, rest, and avoid strenuous exercise.
