Determinación de Valores Referenciales del Contaje de Leucocitos, Eritrocitos y Plaquetas, Hematocrito y Hemoglobina, en Personas de Edades

Abstract

Determination of reference values of leukocyte, erythrocyte and platelet counts, hematocrit and hemoglobin in people between 18 and 25 years of age attended in the clinical laboratory, Faculty of Sciences from 2008 to 2012. A retrospective descriptive study was carried out using a posteriori selection methodology; that is to say, clinical histories of the individuals were compiled and 3280 hematological data were collected, and inclusion and exclusion criteria were applied, obtaining 2440 hematological values of subjects of both sexes. Using statistical methods, 50.57% of the total population studied corresponded to the female sex and 49.43% to the male sex. Non-parametric methods were applied to determine the reference values, using the 2.5 and 97.5 percentiles as lower and upper limits, respectively. Significant differences were found between the calculated reference values and those reported by other publications in populations at different altitudes in all the parameters evaluated by applying Student's t-test for a population versus a reference value. The reference values were determined having as a result: Leukocyte count (x103/µl) is 4.3 - 10.6 for men and 4.1 - 10.5 for women; Erythrocyte count (x106/µl) is 4.3 - 6.4 for men and 4.3 - 6.2 for women; Hemoglobin determination (g/dl) is 13.01 - 19 for men and 13.08 - 18.9 for women; Hematocrit determination (%) 38.1 - 55.9 for men and 38.1 - 55.7 for women and Platelet count (x103/µl) is 192 - 417 in men and 204 - 443.2 for women. These referential values give a vision to the medical professionals that attend this group of people improving their health status. For the above mentioned it is important that each Clinical Laboratory determines the referential values according to the population that is attended because there are differences by geographic location.