1 History presents an historian with the task of producing a dialogue between the past and the present. 2  But as these temporal co-ordinates cannot be fixed, history becomes a continuous interaction between the historian and the past.
A routine blood test usually only test for some general features, like potassium, sodium, creatinine, urea, C-reactive protein and a few other. It does often make a blood count of both red blood cells and white blood cells too. In that way it can detect leukemia.
For example, in the case of erythrocyte sedimentation rate (ESR) and/or C-reactive protein, a blood test will reveal inflammation of the tissue. This inflammation would, in turn, indicate an underlying pathology. Depending on oneâs symptoms and the suspected diagnosis, tests specific to each disease would be run. A nice starting place is the antinuclear antibody (ANA) test, which reveals antibodies in oneâs bloodstream. In the diagnosis of Addisonâs disease, it is imperative to evaluate cortisol levels.