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.
Answer by traumatised (3285). They can look at all kinds of things in a blood sample: blood sugar levels, amounts of various hormones or salts and proteins that can indicate potential diseases or problems. They may also be looking at your red cell/white cell/plasma count, which can be indicative of other conditions.nswer by dc8333 (420). That depends entirely on the reason the test was taken. There are a variety of things which can be found from testing blood, however doctors are only likely to test for something specific.