摘要：目的  观察改变筛选献血员ALT临界值对初复检合格率的影响。方法  对初复检与快速筛选方法进行直线相关分析并得出回归方程，然后拟定提高快速筛选临界值，观察初复检合格率。结果  初检值=―1.1886+06137×快速值；复检值=―1.4018+0.4821×快速值，快速筛选临界值提高5U和10U，初复检合格率均为100%。献血员合格率也显著提高。结论  将献血员快速筛选临界值初复检的值增加5～10U，在不影响血液的质量前提下，可显著增加献血员合格率。

Abstract: Objective To explore the impact of increase of ALT thresholds for blood donors on the pass rates of first-examination and second-examination. Methods The correlations between analysis results of ALT of initial-examination and re-examination with rapid screening methods were determined with linear correlation analysis. The re-examination pass rates were observed by improve rapid screening thresholds based on the above derived equations. Results The initial examination value of ALT was calculated as 1.1886 + 06137×rapid screening value, and the re-examination value was calculated as 1.4018 + 0.4821×rapid screening value. After increasing 5U or 10U of thresholds of rapid screening value, the initial and re-examination pass rate was all 100%. The pass rates of blood donors were significantly increased. Conclusion The Threshold value of ALT in rapid screening of blood donors could be increased by 5 ~ 10 U without affecting the quality of the blood.