Indications for measuring a patient's liver function tests prior to surgery:
(1) history of significant liver disease
(2) history of ethanol abuse
(3) history of hepatitis or jaundice
(4) history of contact with someone with hepatitis during the past 6 months
(5) significant weight change (gain or loss) in the past year
(6) prolonged bleeding from cuts or easy bruisability
(7) vomiting of blood or coffee-grounds like material
(8) change in bowel habits or a change in stool color
(9) history of therapy with a drug having a significant risk of liver injury
(10) obesity, diabetes and other risk factors for nonalcoholic steatohepatitis
(11) presence of ascites
A patient with none of these findings probably does not need liver function tests measured prior to surgery,
