ABSTRACT
【Objective】 To explore the deferral causes of apheresis platelet donors during primary screening in Qinghai, so as to take appropriate measures to improve the pass rate of donors. 【Methods】 The primary screening results of 6 673 apheresis donors from January 2018 to January 2020 in Qinghai were analyzed retrospectively. And the deferral results of donors were compared according to high(>2 500 m), middle(about 2 000 m) and low(<1500 m) altitude. 【Results】 41.7%(531) of those high-altitude blood donors were deferred, as low Plt accounted for 13.2%(168), high ALT 11.9%(151), high Hct/Hb/RBC 11.8%(150), and limepic blood 4.0%(51). 8.1% of the middle-altitude donors were deferred. As for low-altitude donors, low HCT, Hb and RBC(0.6%, 8 cases) were the dominant reason. 【Conclusion】 The different altitudes and living habits of blood donors may result in their deferral. Appropriate measures should be carried out for apheresis donors from areas of different altitudes when recruiting donors, so as to elevate the pass rate.