RESUMO
Objective:To establish a new strategy for rapid correction of the interference of chyle blood on hemoglobin (HGB) and related indexes by reticulocyte (RET) channel research parameters (HGB-O, MCHC-O) from automatic hematological analyzer.Methods:With the diagnostic experimental design, a total of 90 impatient samples were sequential picked from Fuwai Hospital, which had routine blood testing from June 1 to July 31, 2021. The selected samples were free of hemolysis, jaundice, chylo. The age of the patients was (49.2±5.7) years, with 47 males and 43 females. Three different contents(25, 50, 75 μl) of fat emulsion injection were used to replace plasma in equal amounts to prepare chyle blood samples with mild, medium and heavy degrees of average red blood cell hemoglobin concentration (MCHC). The research parameters (HGB-O, MCHC-O) obtained by the RET channel detection of the automatic blood analyzer were used as the corrected HGB and its related index values (RET method), and the original values (the detection values before adding fat emulsion) and the formula correction values were paired with t-test or Wilcoxon signed rank test, single factor analysis of variance or Kruskal-Wallis rank-sum test, Bland-Altman and correlation analysis to evaluate the correction effect of RET method.Results:There was no significant difference ( H=0.035, P=0.983; H=0.097, P=0.953; H=0.112, P=0.945) between the RET correction values of HGB (g/L) [104.0(83.8, 132.8), 109.0(87.78, 128.25), 104.0(87.8, 131.8)] and the original values [104.0(83.0, 133.0), 107.5(86.75, 129.25), 103.5(85.8, 131.3)] and the formula correction values [104.0(84.0, 133.8), 106.0(86.75, 131.25), 102.5(86.8, 131.3)] in the samples of chythemia with varying degrees of MCHC (g/L) elevation; meanwhile, the RET correction values [366.5(325.8, 341.5), 333.5(323.8, 340.0), 333.5(327.0, 341.25)] and the original values [336.0(324.8, 342.0), 333.0(323.5, 342.3), 332.0(326.75, 340.5)] and the formula correction values [333.5(323.5, 343.3), 331.0(321.0, 338.3), 329.5(325.25, 337.25)] were also not statistically significant ( H=0.049, P=0.976; H=3.149, P=0.207; H=0.883, P=0.643). The detection values of HGB and related indexes corrected by RET method were in good agreement with the original values [96.7% (29/30) of the points were within the 95% consistency limit], and the two were positively correlated (the correlation coefficients were all higher than 0.919, P<0.01). Conclusion:The RET method based on the research parameters of RET channel of automatic hematological analyzer can serve as a new strategy to correct the interference of chyle blood on the detection of HGB and related indexes.