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.
Such tests will usually be carried out if cancer is suspected from a physical examination. Patients often ask 'would cancer show up in a blood test'. The answer is that blood tests may not provide a definitive answer but often form part of a general examination to assess health.Common tests include measurement of liver function and hemoglobin levels, abnormalities in these can point to the possibility of cancer.Leukemia arises in the bone marrow and tumor cells usually enter the bloodstream. Therefore malignant cells will be visible if the blood cells are examined in a blood film.ommon tests include measurement of liver function and hemoglobin levels, abnormalities in these can point to the possibility of cancer. Leukemia arises in the bone marrow and tumor cells usually enter the bloodstream. Therefore malignant cells will be visible if the blood cells are examined in a blood film.