Investigation on the reference range of venous blood cells of aged people

Objective To establish the reference range of venous blood cells of healthy aged people by means of investigation on the reference range of venous blood cells of healthy adults and the aged.Methods The parameters of 3 302 venous blood samples from the healthy adults and the aged were analyzed by applying SymexKX-21N hematology analyzer,and the test results were statistically analyzed with SPSS10.0 software.Results The reference range of the healthy aged people(males and females):WBC(3.57-9.00)×10~9/L and(3.52-8.39)×10~9/L;RBC(3.78-5.42)×10~(12)/L and (3.44-4.83)×10~(12)/L;hemoglobin(Hb) 121.40-168.10 and 107.90-147.90 g/L;hematocrit (HCT) 36.62%-49.18%and 32.82%-44.03%;mean corpuscular volume(MCV) 85.10-100.60 and 84.70-100.60 fL;mean corpuscular hemoglobin(MCH) 28.54-34.48 and 28.20-34.10 pg; mean corpuscular hemoglobin concentration(MCHC) 322.00-357.00 and 320.00-352.00 pg/L; coefficient of variation of red blood cell distribution width(RDW-CV) 12.13%-15.10%and 10.20%-17.12%;platelet(PLT)(70.00-240.00)×10~9/Land(77.00-262.00)×10~9/L;mean platelet volume(MPV) 9.77-15.37 and 9.51-15.55 fL;platelet distribution width(PDW) 11.44%-27.77%;platelet hematocrit(PCT) 1.10-2.73 and 1.13-2.99 mL/L;large platelet ratio (P-LCR) 24.35%-70.14%.The differences of the parameters(WBC,RBC,Hb,HCT,MCHC, PLT and PCT) were statistically significant between senile males and senile females(P0.01),while the other parameters weren't(P0.05);the differences of parameters(WBC,MPV,PDW and PLCR) were not significant between adults and the ageds(P0.05),while the other parameters were (P0.05).There were also significant differences(P0.05) between the test results and the repor- ted date about the blood cell parameters of adults and the ageds.Conclusion The reference range of the healthy ageds is different from that of adults;therefore it is necessary to establish the laboratory reference range of venous blood cells of the elderly in this region scientifically and rationally.