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 measure the amount of these proteins in the bloodstream. Higher than normal levels of these proteins suggest a heart attack. Commonly used blood tests include troponin tests, CK or CKâMB tests, and serum myoglobin tests.Blood tests often are repeated to check for changes over time.lood tests can measure the amount of these proteins in the bloodstream. Higher than normal levels of these proteins suggest a heart attack. Commonly used blood tests include troponin tests, CK or CKâMB tests, and serum myoglobin tests.