<prompt> Answer this question truthfullyWhat are the laboratory results indicating an abdominal mass?  <response>: <reason> Routine blood tests are usually the next step in diagnosis after a thorough medical history and physical examination. They should include a full blood count, blood urea nitrogen BUN, creatinine, and liver function tests such as albumin, international normalized ratio INR, partial thromboplastin time PTT, serum amylase and total bilirubin TBIL. If late-stage liver disease is suspected, then a serum glucose may be appropriate. 