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 can screen for cancer in healthy people and can help diagnose cancer in those with disease symptoms. Blood tests can also be used to monitor a person's response to cancer treatments and detect tumor recurrence.Doctors look for the presence of cancer cells in the blood or tumor markers, which are substances made by a cancerous tumor.lood tests combined with other diagnostic tools are used to diagnose cancer in people with disease symptoms. CA-125 is a tumor marker that can help determine if a woman has ovarian cancer that may spread to other sites.