<prompt> Answer this question truthfullyWhat other diagnostic tests are available for Hepatitis C?  <response>: <reason> Liver biopsy is considered the gold standard for assessing the grade of liver injury, the stage of liver fibrosis, and in guiding therapy. Recent guidelines advise obtaining a liver biopsy only in patients in which a biopsy would alter the course of treatment. Characteristic findings of hepatitis C on biopsy include interface hepatitis, cytoplasmic dissociation, steatosis, prominence of Kuppfer cells, and lymphoid follicle formation. 