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Hematology discussions #11.Patient Aaron had an RBC count of 4.0 * 1012/L. Explain why a hospital in Alabama might consider this value "normal," whereas a facility in Utah may recognize Aaron’s RBC as "below" normal.The terms normal parameter is subjective. Due to differences in individual populations some standard values may be considered abnormal to others. For instance, I work in a nursing home that has an on-site lab. Our average values are very different from the values considered normal at my daughter’s pediatric allergist clinic lab. Because of these instances labs must determine their own “norm” impacted by not only age differences in populations but also gender, race and geographical area. In this case, Aaron’s lab value is considered abnormal in one geographical location than the other. Aaron's abnormal lab result could be due to the elevation level since Utah is at a higher altitude than Alabama. According to an article I read, Polycythemia (n.d.), persons who live in higher altitudes have an increased number of RBCs to compensate for lower oxygen levels. Due to this geographical difference in blood cell concentration, Utah’s normal value would be higher than Alabama’s.