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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.
Hepatitis B tests may be ordered when someone has signs and symptoms associated with acute hepatitis to determine if they are due to infection with HBV. Some of these include: 1  Fever. 2  Fatigue. 3  Loss of appetite.4  Nausea, vomiting. 5  Abdominal pain.6  Dark urine. 7  Pale stools.epatitis B tests may be ordered when someone has signs and symptoms associated with acute hepatitis to determine if they are due to infection with HBV. Some of these include: 1  Fever. 2  Fatigue. 3  Loss of appetite.