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.
Blood tests, aka blood work, can show us whatâs in our blood â and by extension, whatâs in our bodies. Blood can also show us changes in our bodies that we might not be able to see from the outside â such as our blood sugar levels or nutritional status.