Case scenario: An 18-year-old Indian man presented with a 4-days history of fever, malaise, and anorexia. The patient reported traveling from India to the US four weeks ago and had consumed non-prescription drugs, herbal medicines, alcohol, and illicit drugs. Physical examination showed scleral icterus and a palpable liver edge. Ultrasonography demonstrated a liver span of 16 cm, a common bile duct measuring 0.3 cm, and hepatic vasculature. Laboratory testing revealed elevated total bilirubin levels (5.6 mg/dL). Tests for viral hepatitis were negative except for the hepatitis E antibody.
Which of the following tests would help diagnose this patient's condition? A. α 1 – Antitrypsin phenotype testing B. Anti-hepatitis E virus (HEV) IgM testing C. Antimitochondrial antibody testing D. Repeat hepatitis D virus antibody PCR testing
