Articles on Medical Diseases and Conditions

Entries Tagged ‘polycythemia’


Polycythemia is an increase in the total blood RBCs over the upper limit of the reference range. This usually entails a concurrent increase in hemoglobin and hematocrit values. Since various studies disagree somewhat on the values that should be considered the upper limits of normal, partially arbitrary criteria are used to define polycythemia. A hemoglobin […]

Comments On Hematologic Tests

The nine procedures previously described are the basic tests of hematology. Careful selection and interpretation of these procedures can go far toward solving the vast majority of hematologic problems. Other tests may be ordered to confirm or exclude a diagnosis suggested by the results of preliminary studies. These other tests will be discussed in association […]