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Blood tests. 1  Antibody tests. If there's a need for additional confirmation, a monospot test may be done to check your blood for antibodies to the Epstein-Barr virus. 2  White blood cell count. Your doctor may use other blood tests to look for an elevated number of white blood cells (lymphocytes) or abnormal-looking lymphocytes.
1 Even if the HCV RIBA result is positive, only the test of HCV RNA (viral load) can detect whether the hepatitis C virus is still present in the body. 2  HCV RIBA is not a test that is needed for most patients. 3  Usually, it is performed by blood banks to check for hepatitis C in people who donate blood.he viral load of hepatitis C refers to the amount of virus present in the bloodstream. A viral load test is usually measured with the hepatitis C RNA quantitative test; a blood sample will be taken by needle from a vein in your arm.