at the amosov institute, there are currently about 200 patients who are waiting for or have already undergone heart surgery. by. in one surgical intervention, the recipient can be transfused with an average of four bags of blood or its components. in the case of platelets, they only last 5 days, so that's important to donate blood regularly to provide the hospital with such necessary material. the need is always more common in those groups that are most common in the population, these are the first and second blood groups. usually , we try to keep donors of rare blood groups in reserve and call them when necessary. of the patient, since the blood is stored for a short time, and it is desirable to always collect fresh blood and give it out on the day when we collected it specifically for the patient. military personnel, including children, and other displaced persons, people in need of emergency assistance, i.e. different categories of patients that we have to operate even today, or now, or in a few days, and all the blood that... our donors, volunteer donors give us, this blood goes to such o