[The possibility of applying historical concentration of thrombocytes in examination of donors.].

The historical concentration of thrombocytes is an average of three subsequent concentrations of thrombocytes before donation (during two years) in blood of donors. The evaluation was applied to characteristics of historical concentration of thrombocytes concerning concentration of thrombocytes in blood of 99 regular donors before every donation of apheresis thrombocytes. It is established that less than 20% dispersion between historical concentration of thrombocytes and value obtained in day of donation is observed in 96% of regular donors.

[THE IMPLEMENTATION OF NAT-SCREENING OF INFECTIONS IN BLOOD DONORS OF THE REPUBLIC OF KAZAKHSTAN].

The article presents analysis of screening of markers of infections in donors using the nucleic amplification technique (NAT) within 4 years. The comparison is made with similar international indices and evaluation was applied to efficiency of the given technique in Kazakhstan. The study established that productivity of NAT technique in Kazakhstan significantly exceeds average international values.

POLYMORPHISM OF COLLECTION, TRANSFUSION AND EFFECTIVENESS OF DONOR PLATELETS CONCENTRATES.

There were compared the results of 520 platelets transfusions in 8 centers. In the surveyed organizations part of prophylactic platelet transfusions ranged from 10% to 91%. On average platelet transfusions for the prevention of bleeding in 3,6 times more often than to stop the bleeding.

[Prevalence and incidence of infections among blood donors in Astana].

The prevalence and incidence of infections among 28,248 blood donors in Astana in 2012 was determined. The estimated residual risk of the transfusion infection was as follows: for HIV--1,2, HCV--137,7, HBV--125,4 per 1 million donations. High risk of transfusion infection with HIV, hepatitis B, and C stimulates the active implementation of the measures for increasing the safety of blood: the selection of donors, increasing the sensitivity of infections screening methods, inactivation of pathogens in blood components and transfusion management appointment at the clinic.

[The organization of centralized testing of donor blood for infection in the Irkutskaia oblast].

The article presents the results of changes of concentration of DNA of viral hepatitis B under conservation in frozen conditions. The optimal scheme of preparing and delivering samples of donor blood stored up in institutions of blood service of the Irkutskaia oblast for molecular biological testing was elaborated.

[Prevalence and incidence of the infections among blood donors in Russia].

The prevalence and incidence of the infections among Russian blood donors in 2010-2012 was determined. The estimated residual risk of the transfusion infection was as follows: for HIV - 16.2, HCV - 33.

[The individual selection of erythrocytes for regional clinics].

The article deals with the results of work of Krasnoyarsk kray blood center immune hematologic laboratory concerning selection of erythrocytes in 2003-2010. In Krasnoyarsk kray, the portion of transfusions of individually selected erythrocytes increases and reached 31.9%.