Although transfusion in neonates needs to be strictly regulated due to the vulnerability of neonates, there is lack of systematic studies and the working process is not well-established. This study was aimed to point out the problems of current status and to improve the efficiency of systems used in blood aliquots for neonatal transfusions. Methods: Total red blood cell (RBC) aliquots were analyzed between May 2009 and January 2016 in the neonate intensive care unit. We investigated the aliquot

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... number, issued day interval from the first issued aliquot among the post-aliquots, patients' blood type, and discarded RBC units among the requested RBC units. Results: Of the 472 RBC aliquots, 95.4% (450/472) were divided into two units. The distribution of patients' blood type was similar to that of the Korean population, in decreasing order: A blood group (34.3%), B group (28.2%), and O group (27.5%). The second, third, and forth units of post-aliquots were taken after an average of 49.9 (0∼617.9) hours. Among the post-aliquots, the number of units discarded without use was 22.5%. Conclusion: According to the evaluation of current status for neonatal transfusions, we should use aliquot RBC properly and reduce unnecessary requests for aliquot RBC. In addition, in order to reduce the number of near misses, we propose a new label to be attached on the aliquotted blood bags and suggest a development of electronic blood issuing system. (Korean J Blood Transfus 2016;27:122-129)