To further elucidate the causes of jaundice or increased bilirubin, it is usually simpler to look at other liver function tests ( especially the enzymes alanine transaminase, aspartate transaminase, gamma-glutamyl transpeptidase, alkaline phosphatase ), blood film examination ( hemolysis, etc . ) or evidence of infective hepatitis ( e . g ., hepatitis A, B, C, delta, E, etc . ).