What is the process of blood donation?
The blood donation process is safe, relatively painless, which lasts an average of about an hour depending on the donor. As soon as the donor arrives at the donation site, he is checked by a number of simple tests and questionnaires to determine the capacity. When the ability to donate blood was determined, it is led to the table to sit in a lying position, while the phlebotomist prepares and puts the needle to start a gift. When one unit of blood was drawn, the donor is served juice and other refreshments and remains before leaving for a short time. Men and women can give blood regardless of their blood type, but the donor must be without certain diseases to prevent them from spreading. Although it is very rare, it is not unheard of to be persecuted by blood transfusion diseases and is devoted to great care for these events, if possible. There are also age and weight requirements to ensure that the process is safe for the donor body.
The first line of defense against the dissemination of the disease is the donor screening process. Before donating blood, each candidate receives a lengthy questionnaire. Here the donor is asked about his travels, sexual and medical history and other things that could exclude him in blood donation. For example, if a person has traveled to the area of the world where malaria is infected, a year must wait a year before the donation of blood, even if the disease does not take place.
After this part of the screening, blood pressure and pulse of the donor are taken and a small amount of blood is tested for anemia. Specifically, the test reads the level of the person's hematocrit, which is a percentage of the total Blood volume that consists of red blood cells, those carrying iron and oxygen. The reduced level of hematocrit can prevent the person to donate blood that day, but in general, this is not a reason for concern.
At this point, if the candidate meets all the requirements, it is led to a separate area to start the gift itself. The hollow needle is inserted into a vein on the inside of the elbow of the donor afterLast sterilized. It is attached to a narrow tube through which the blood flows into the bag to gather. Generally, one unit of blood is collected, approximately equal to one pint (0.45 liters).
After sending the blood, the donor sits down and gets up slowly to make sure he is stable on his feet, because the donation of blood can cause a person to be able to do. As a special preventive measure against the dissemination of the disease, the donor will receive a telephone card card and a reference number that corresponds to its specific blood. If at any time after donation decides that it is not safe for its blood to be used, it can call the number and the blood will be discarded.