Other blood tests are done based on clinical suspicion and initial test findings, as for the following: Signs of hepatic insufficiency (eg, encephalopathy, ascites, ecchymoses) or gastrointestinal (GI) bleeding: Coagulation profile (prothrombin time [PT] / partial thromboplastin time [PTT]) Hepatitis risk factors (see table Some Risk Factors for Hepatitis) or a hepatocellular mechanism suggested by blood test results: Hepatitis viral and autoimmune serologic tests Fever, abdominal pain, and tenderness: Complete blood count and, if patients appear ill, blood cultures Suspicion of hemolysis can be confirmed by a peripheral blood smear.